CUET 2023 Environmental Studies Answer Key for all shifts is made available for download here. NTA to release CUET Answer Key 2023 PDF for Environmental Studies soon on cuet.samarth.ac.in. Download CUET 2023 Environmental Studies Question Paper PDF
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CUET 2023 Environmental Studies Answer Key and Question Paper with Solutions PDF
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CUET 2023 Environmental Studies Questions with Solutions
The Green Politics (Germany) is known to have the following pillars:
A. Ecological Wisdom
B. Free Trade
C. Social Justice
D. Grassroot democracy
E. Non-violence
Choose the correct answer from the options given below:
Match List I with List II:
LIST I (Author) LIST II (Book)
A. Barry Commoner I. Turtle Island
B. Gary Snyder II. The Poverty of Power
C. Rachel Carson III. A Place on Earth
D. Wendell Berry IV. Silent Spring
Choose the correct answer from the options given below:
A practice of reserving resources for future generations without causing harm to the nature and other components of nature is a part of:
The National award in the name of Amrita Devi Bishnoi is given in the field of:
Greenpeace Organisation was founded in the year ___ and in ___.
Organism which can tolerate and thrive in a wide range of salinities are known as:
The statement "Populations evolve in the habitat in which they live to maximise their reproductive fitness" is representative of:
Arrange the phases of logistics population growth from starting from 1st to last:
A. Plateau phase
B. Exponential phase
C. Positive Acceleration phase
D. Lag phase
E. Negative Acceleration phase
Choose the correct answer from the options given below:
Match List I with List II:
LIST I (Organisms) LIST II (Interaction)
A. Fig tree and wasp I. Commensalism
B. Orchid and mango II. Parasitism
C. Cuscuta and hedge III. Mutualism
D. Cow and grass IV. Predation
Choose the correct answer from the options given below:
Arrange the following biomes in increasing order of mean annual precipitation.
A. Tropical forest
B. Grassland
C. Desert
D. Temperate forest
Choose the correct answer from the options given below:
Which of the following is not a part of 'In situ' Biodiversity conservation?
Arrange the following in increasing order on the basis of total amount of energy consumed at each trophic level per unit area per unit time:
A. Producer
B. Primary consumer
C. Secondary consumer
D. Tertiary consumer
Choose the correct answer from the options given below:
Which of the following gas is an indoor air pollutant?
The acceptable range of pH in drinking water as per Bureau of Indian Standards is:
Which of the following are responsible for eutrophication in water bodies?
Match List I with List II
List I List II
Environmental accidents Year
A. Chernobyl nuclear disaster I. 1948
B. Bhopal Gas Tragedy II. 1952
C. Donora air pollution III. 1984
D. The great smog of London IV. 1986
Choose the correct answer from the options given below:
Particle size of the medium 'Sand' lies between:
Arrange the biotic and abiotic components of aquatic food chain on the basis of biomagnification of DDT.
A. Fish eating birds
B. Water
C. Large fish
D. Zooplankton
E. Small fish
Choose the correct answer from the options given below:
Which of the following measurement is equivalent to 100 ppb?
Legume crops enrich the soil fertility by:
High concentration of Nitrate in drinking water can cause.
A.Minamata disease
B.Blue baby syndrome disease
C.Itai-Itai disease
D.Methaemoglobinaemia disease
Choose the correct answer from the options given below:
Which one of the following theory talks of labour flow from low wage areas to high wage area due to geographic labour demand and supply?
Which of the following is not a push factor for human migration?
The acronym "OECD" stands for:
Secondary treatment of sewage water:
A.Removes solid particles and debris
B.Removes dissolved and suspended biological matter
C.Involves conventional sedimentation and filtration
D.Reduces the bio-chemical oxygen demand of water
E.Increases the bio-chemical oxygen demand of water
Choose the correct answer from the options given below:
Which one of the following is Non-thermal technology for 'waste to energy' conversion?
Sarvodaya movement was intended to promote self-sufficiency amongst India’s rural population by:
A. Encouraging land distribution
B. Centralized governance
C. Socio-economic reform
D. Promoting large industries
E. Promoting cottage industries
Choose the correct answer from the options given below:
Report of World Commission of Environment and Development (WCED) is known as:
A rainwater harvesting practice to collect water flowing from glaciers in Laddakh is called as:
Which of the following is not a basic element of the green revolution?
The cropping season of Zaid crop is:
The slash and burn agriculture (shifting cultivation) practised in Indonesia and Malaysia is referred to as
In context of food security, the factors responsible for food crisis and increase in prices of food grains are:
A. Global population boom
B. Climate change
C. Increased farming of biofuels and non-edible items
D. Sustainable agricultural practices
Choose the correct answer from the options given below:
Following is NOT a characteristic of ‘Resource’ in Environmental Economics:
The natural reservoir of phosphorus in soils/sediments is:
‘Shifting to electrical vehicles will reduce emissions of greenhouse gases.’ This statement is an example of:
The world’s stock of natural resources which creates long supply of goods and services is referred to as:
The systematic approach to estimate the strength and weakness of activities or functional requirement considering both direct and indirect values is known as:
Most of the weather-related phenomena on Earth's surface takes place in:
Match List I with List II
LIST I LIST II
Convention Protocol Objective
A. The Bamako I. To control international exportation of toxic waste
B. The Basel II. Reducing production and usage of ozone depletion substances
C. Kyoto III. Ban on import of hazardous waste into Africa
D. Montreal IV. Reduction in Green-house gases emissions
Choose the correct answer from the options given below:
Read the following passage and answer the question:
Lakes and river systems are separated from each other by barriers of land. It might have been thought that
fresh water productions would not have ranged widely within the same country, and as the sea is apparently a
still more impassable barrier, that they never would have extended to distant countries. But the case is exactly
the reverse. Not only have fresh-water species, belonging to quite different classes, an enormous range, but
allied species have also prevailed in a remarkable manner throughout the world. I well remember, while first
collecting the fresh-waters of Brazil, feeling much surprise at the similarity of the fresh-water insects, shells,
etc. and at the dissimilarity of the surrounding terrestrial beings, compared with those of Britain.
The author seems to be surprised often comparing certain species of which of the following two regions?
Read the following passage and answer the question:
Lakes and river systems are separated from each other by barriers of land. It might have been thought that
fresh water productions would not have ranged widely within the same country, and as the sea is apparently a
still more impassable barrier, that they never would have extended to distant countries. But the case is exactly
the reverse. Not only have fresh-water species, belonging to quite different classes, an enormous range, but
allied species have also prevailed in a remarkable manner throughout the world. I well remember, while first
collecting the fresh-waters of Brazil, feeling much surprise at the similarity of the fresh-water insects, shells,
etc. and at the dissimilarity of the surrounding terrestrial beings, compared with those of Britain.
Which of the following conclusions has the author drawn?
Read the following passage and answer the question:
Lakes and river systems are separated from each other by barriers of land. It might have been thought that
fresh water productions would not have ranged widely within the same country, and as the sea is apparently a
still more impassable barrier, that they never would have extended to distant countries. But the case is exactly
the reverse. Not only have fresh-water species, belonging to quite different classes, an enormous range, but
allied species have also prevailed in a remarkable manner throughout the world. I well remember, while first
collecting the fresh-waters of Brazil, feeling much surprise at the similarity of the fresh-water insects, shells,
etc. and at the dissimilarity of the surrounding terrestrial beings, compared with those of Britain.
Which of the following species, the author most likely studied as per the given passage?
Read the following passage and answer the question:
Lakes and river systems are separated from each other by barriers of land. It might have been thought that
fresh water productions would not have ranged widely within the same country, and as the sea is apparently a
still more impassable barrier, that they never would have extended to distant countries. But the case is exactly
the reverse. Not only have fresh-water species, belonging to quite different classes, an enormous range, but
allied species have also prevailed in a remarkable manner throughout the world. I well remember, while first
collecting the fresh-waters of Brazil, feeling much surprise at the similarity of the fresh-water insects, shells,
etc. and at the dissimilarity of the surrounding terrestrial beings, compared with those of Britain.
Which of the following has been cited in the passage as a possible reason to support the hypothesis of narrow range of fresh water species biodiversity?
Read the following passage and answer the question:
Lakes and river systems are separated from each other by barriers of land. It might have been thought that
fresh water productions would not have ranged widely within the same country, and as the sea is apparently a
still more impassable barrier, that they never would have extended to distant countries. But the case is exactly
the reverse. Not only have fresh-water species, belonging to quite different classes, an enormous range, but
allied species have also prevailed in a remarkable manner throughout the world. I well remember, while first
collecting the fresh-waters of Brazil, feeling much surprise at the similarity of the fresh-water insects, shells,
etc. and at the dissimilarity of the surrounding terrestrial beings, compared with those of Britain.
Which of the following captures the essence of the given passage most appropriately?
Read the following passage and answer the question:
The global average surface temperature has increased by approximately 0.8° C over the last century. Many
countries have experienced increase in rainfall, particularly in those situated in the mid to high latitudes. In
some regions, the frequency and intensity of droughts have increased in recent decades. All these are signs of
climate change, which making it more difficult for mankind survival. Projections of future climate change
have predicted that the global mean surface temperature will rise by 1.4° C to 5.8° C. The frequency of
weather extremes is likely to increase. Global mean sea level is projected to rise by 9 to 88 cm by the year
2100. Changes in climate may affect the distribution of vector species which in turn will increase the spread of
diseases, such as malaria and filariasis, to new areas which lack a strong public health infrastructure.
Present day problem of climate change is NOT primarily due to:
Read the following passage and answer the question:
The global average surface temperature has increased by approximately 0.8° C over the last century. Many
countries have experienced increase in rainfall, particularly in those situated in the mid to high latitudes. In
some regions, the frequency and intensity of droughts have increased in recent decades. All these are signs of
climate change, which making it more difficult for mankind survival. Projections of future climate change
have predicted that the global mean surface temperature will rise by 1.4° C to 5.8° C. The frequency of
weather extremes is likely to increase. Global mean sea level is projected to rise by 9 to 88 cm by the year
2100. Changes in climate may affect the distribution of vector species which in turn will increase the spread of
diseases, such as malaria and filariasis, to new areas which lack a strong public health infrastructure.
Climate change related impacts could lead to:
Read the following passage and answer the question:
The global average surface temperature has increased by approximately 0.8° C over the last century. Many
countries have experienced increase in rainfall, particularly in those situated in the mid to high latitudes. In
some regions, the frequency and intensity of droughts have increased in recent decades. All these are signs of
climate change, which making it more difficult for mankind survival. Projections of future climate change
have predicted that the global mean surface temperature will rise by 1.4° C to 5.8° C. The frequency of
weather extremes is likely to increase. Global mean sea level is projected to rise by 9 to 88 cm by the year
2100. Changes in climate may affect the distribution of vector species which in turn will increase the spread of
diseases, such as malaria and filariasis, to new areas which lack a strong public health infrastructure.
Which of the following gases contribute maximally to global warming?
Read the following passage and answer the question:
The global average surface temperature has increased by approximately 0.8° C over the last century. Many
countries have experienced increase in rainfall, particularly in those situated in the mid to high latitudes. In
some regions, the frequency and intensity of droughts have increased in recent decades. All these are signs of
climate change, which making it more difficult for mankind survival. Projections of future climate change
have predicted that the global mean surface temperature will rise by 1.4° C to 5.8° C. The frequency of
weather extremes is likely to increase. Global mean sea level is projected to rise by 9 to 88 cm by the year
2100. Changes in climate may affect the distribution of vector species which in turn will increase the spread of
diseases, such as malaria and filariasis, to new areas which lack a strong public health infrastructure.
Which of the following gas is NOT responsible for anthropogenic global warming?
Read the following passage and answer the question:
The global average surface temperature has increased by approximately 0.8° C over the last century. Many
countries have experienced increase in rainfall, particularly in those situated in the mid to high latitudes. In
some regions, the frequency and intensity of droughts have increased in recent decades. All these are signs of
climate change, which making it more difficult for mankind survival. Projections of future climate change
have predicted that the global mean surface temperature will rise by 1.4° C to 5.8° C. The frequency of
weather extremes is likely to increase. Global mean sea level is projected to rise by 9 to 88 cm by the year
2100. Changes in climate may affect the distribution of vector species which in turn will increase the spread of
diseases, such as malaria and filariasis, to new areas which lack a strong public health infrastructure.
Climate change does NOT lead to:
Which of the following statements are correct?
A. Exception Handling can be done for only user-defined exceptions but not for built-in exceptions.
B. In python exception handling, else clause is optional.
C. Try statement in python must have a finally clause.
D. Statements in finally clause are always executed regardless of whether an exception has occurred in try block or not.
E. Except block will be executed only if some exception is raised in try block.
Choose the correct answer from the options given below:
View Solution
- Statement A is incorrect because Python handles both built-in and user-defined exceptions.
- Statement B is correct: the `else` clause is optional.
- Statement C is incorrect: a `finally` clause is optional.
- Statement D is correct: the `finally` block always executes.
- Statement E is correct: the `except` block only runs if an exception occurs. Quick Tip: Remember: try-except-finally is flexible—`finally` is optional, but if present, it always executes.
____ is raised when the index in a sequence is out of range.
View Solution
`IndexError` is raised in Python when you try to access an index that is outside the bounds of a list, tuple, or string. The other options relate to different kinds of errors (e.g., import issues, type mismatches, or unexpected end-of-file). Quick Tip: Accessing a non-existent element in a sequence? Think `IndexError`!
seek(1) method in files used for:
View Solution
The `seek(offset)` method in Python sets the file’s current position at the specified offset. It is commonly used to navigate to a specific byte within a file for reading or writing. Quick Tip: `seek()` = reposition the file pointer. `seek(1)` means go to position 1 in the file.
Which of the following statements are true with respect to append \textless a\textgreater\ mode?
A. The user can read the file in \textless a\textgreater\ mode.
B. If the file is opened in \textless a\textgreater\ mode and the file doesn’t exist, then it will create a new file.
C. The user can write at the end of existing file when file is opened in \textless a\textgreater\ mode.
D. \textless a\textgreater\ mode is the default mode.
E. If the file is opened in \textless a\textgreater\ mode, the file offset position returned in the End of the file.
Choose the correct answer from the options given below:
View Solution
- A is incorrect: `` mode is for writing; to read, `
- B is correct: `
- C is correct: it writes only at the end.
- D is incorrect: `'r'` is the default mode.
- E is correct: in append mode, writes occur at the file’s end. Quick Tip: Append (`a`) mode = always writes at the end. Read not allowed unless using `a+`.
Database schema is the ____ of a database.
View Solution
A database schema defines the structure or design of a database, including tables, fields, relationships, constraints, and more. It represents the logical configuration of all or part of a relational database. Quick Tip: Think of a schema as a blueprint—it lays out how data is organized and how relationships work.
Consider the following relation:
STUDENT
RollNumber Name Class DateofBirth Address
What should be the primary key for relation STUDENT?
View Solution
The primary key is a unique identifier for records in a table. "RollNumber" is unique for every student and serves as the most appropriate primary key in this case. Quick Tip: Primary keys must be unique and not null. "RollNumber" fits both criteria.
Consider the following statements relating to database:
A. Composite primary key is used to represent the relationship between two relations.
B. A foreign key is used to represent the relationship between two relations.
C. The tuples within a relation must be distinct.
Choose the correct answer from the options given below:
View Solution
- Statement A is false: Composite primary keys uniquely identify a row within a relation, not necessarily define relationships between relations.
- Statement B is true: Foreign keys are used to establish relationships between tables.
- Statement C is true: Tuples (rows) in a relational table must be unique. Quick Tip: Composite keys identify records, foreign keys connect tables, and tuples must always be unique.
Give output of:
Select Round (765.3895, 2)
will return:
View Solution
The SQL `ROUND()` function rounds a numeric field to the number of decimal places specified. `ROUND(765.3895, 2)` rounds the number to two decimal places. Since the third decimal digit is 9 (greater than 5), it rounds up from 765.38 to 765.39. Quick Tip: Pay close attention to the digit following the rounding precision—it determines the final value.
Vardan was asked by his teacher the meaning of the following command. He is not able to decide on the correct answer. Help him in selecting the correct answer.
Select * from stud where admn like '%5%5%';
View Solution
The `LIKE '%5%5%'` SQL command searches for any string where two '5's appear in order, but not necessarily consecutively—they just need to appear somewhere in the value with any characters (including none) in between. Hence, it means the value contains two '5's in any position. Quick Tip: `%` in SQL represents any sequence of characters. `%5%5%` ensures at least two '5's appear somewhere.
Let us consider two relations HISTORY and SCIENCE as depicted in the following Tables 1 and 2 respectively:
Table 1: HISTORY
SNo NAME CLASS
1 MOHAN 6A
2 SANJAY 6B
3 YOGESH 7A
Table 2: SCIENCE
SNo NAME CLASS
1 NARESH 6B
2 SANJAY 6B
3 YOGESH 7A
What is the output of HISTORY - SCIENCE?
(1)
SNo NAME CLASS
1 MOHAN 6A
View Solution
The set operation `HISTORY - SCIENCE` returns the tuples that are present in the HISTORY table but not in the SCIENCE table. Comparing rows, only the tuple (MOHAN, 6A) is unique to HISTORY. SANJAY and YOGESH are present in both, so they are excluded. Quick Tip: Set difference in databases means: “what’s in the first table but not in the second.” Watch for exact matches!
Match List I with List II
LIST I LIST II
A. Alter I. Change the name of the column
B. Update II. Create a database
C. Delete III. Update existing information in a table
D. Create IV. Delete an existing row from table
Choose the correct answer from the options given below:
View Solution
- ALTER is used to modify the structure of a table, such as renaming a column → I.
- UPDATE is for changing values in existing records → III.
- DELETE removes records (rows) from a table → IV.
- CREATE initializes new objects like tables or databases → II. Quick Tip: Match SQL commands based on their function keywords: alter (structure), update (data), delete (rows), create (objects).
The ____ is the largest WAN that connects billions of computers, smartphones and millions of LAN from different Continents.
View Solution
The Internet is the world's largest Wide Area Network (WAN), enabling connectivity between billions of devices and networks globally. Intranet is a private network; subnet is a smaller division of an IP network; supernetting aggregates multiple networks. Quick Tip: If the question says “largest WAN”, the answer is always the Internet—no other choice scales globally.
Who invented the WWW?
View Solution
Tim Berners-Lee, a British computer scientist, invented the World Wide Web (WWW) in 1989 while working at CERN. He developed the first web browser and web server, enabling global communication via the internet. Quick Tip: Tim Berners-Lee = WWW inventor. Remember the initials: TBL → The Browser Legend.
Consider the following statements relating to network device repeater:
A. It is an analog device.
B. It regenerates the received signals.
C. It enables signals to travel longer distances over a network.
Choose the correct answer from the options given below:
View Solution
Repeaters are digital devices, not analog. They regenerate and amplify the digital signal to prevent loss over long distances, ensuring signal integrity in large networks. Quick Tip: Repeaters = digital regenerators, not analog amplifiers. B and C are true.
Which of the following is a network device?
View Solution
A repeater is a network device used to regenerate and amplify signals in a network, allowing data to travel longer distances without degradation. Laptops, monitors, and printers are end-user devices, not part of network infrastructure. Quick Tip: Repeaters help extend network range—classic example of a network device.
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