Environmental Studies · Geography

Environmental Studies

4,969 Questions

Environmental studies focus on the complex interactions between human societies and the natural world, emphasizing sustainability and conservation. Core topics include climate change adaptation, ecological footprint reduction, and habitat restoration strategies. This hub offers targeted practice questions for students preparing for general awareness and environmental science sections.

Climate Change AdaptationSustainability ConceptsHabitat RestorationCarbon FootprintEcological Conservation

Environmental Studies Questions

Multiple choice

Which of the following would qualify as point sources of pollution?

  1. Oil refinery
  2. Jet engine
  3. Agricultural run-off
  4. Mining
  5. Street light

  1. 1, 2 and 5

  2. 1, 2, 3 and 4

  3. 1 and 2

  4. 1, 3 and 4
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

A point source of pollution is a single identifiable source of air, water, thermal, noise or light pollution. A point source has negligible extent, distinguishing it from other pollution source geometries. Nonpoint source (NPS) pollution refers to both water and air pollution from diffuse sources. Nonpoint source water pollution affects a water body from sources such as polluted run-off from agricultural areas draining into a river or wind-borne debris blowing out to sea.

Multiple choice

Global pollutants are those

  1. which are present throughout major oceans
  2. which are present in upper atmosphere

Which of the above is/are true?

  1. Only 1

  2. Only 2

  3. Both 1 and 2

  4. Neither 1 nor 2
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A global pollutant refers to a pollutant whose damage is determined by its concentration in the upper atmosphere. Examples:

  1. Carbon dioxide is often cited as a contributor to the greenhouse effect.
  2. Chloroflourocarbon emissions are linked to ozone depletion.
Multiple choice

Which of following options is not right pertaining to the alterations in abiotic environment?

  1. In the troposphere, photo oxidation of hydrocarbons in the presence of nitrogen oxides, forms ozone.

  2. Annual alterations in temperature in marine environment are more distinct in temperate fresh water climates, than in other climates.

  3. At global level, activities of humans contribute 9 times more particulate matter or aerosols in to the atmosphere, than do natural processes.

  4. Temperature is the sticking factor in creation of aqueous currents and air currents.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

In the troposphere, photo oxidation of hydrocarbons in presence of nitrogen oxides, forms ozone - this option is not right.

Multiple choice

Which of the following statements is/are correct?

a. Oxygen constitutes up to 95-97% of the atmosphere on Venus and Mars. b. Green plants fix carbon dioxide. c. Many marine animals use carbonates dissolved in seawater to breathe.

  1. a only

  2. b only

  3. c only

  4. a and b

  5. b and c
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This statement is correct. Green plants convert carbondioxide into glucose in the presence of sunlight. The process is called photosynthesis and carbon dioxide is fixed by plants through this. Thus, this is the correct answer.

Multiple choice

Which of the following is correct regarding ozone layer?

  1. Ozone is a non toxic gas.

  2. It protects the surface of the earth from infrared rays.

  3. The ozone hole is an annual thinning of the ozone layer.

  4. It is present in the mesosphere.

  5. All of the above
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Ozone hole is a region of marked thinning of the ozone layer in high latitudes, chiefly in winter, attributed to the chemical action of CFCs and other atmospheric pollutants. The resulting increase in ultraviolet light at ground level gives rise to an increased risk of skin cancer.

Multiple choice

Biosphere reserves are meant to _________.

  1. preserve wild land flora and fauna

  2. experiment and develop forest products

  3. tourism

  4. local communities managing the resources

  5. all of the above
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Biosphere Reserves are sites for experimenting with and learning about sustainable development. There are three main parts to a reserve. The first part is called the core zone, which is strongly protected for the conservation of biological diversity to make sure that different types of plants and animals are safe from human impact. The second part is called a buffer zone and surrounds the core zones and provide a space for environmental research, recreation, and tourism. The last part is called a transition zone  and this area is for local communities that have  hand in managing the resources of the area through farming, fisheries, and other non-governmental activities. Ultimately, the ways that these three zones operate depend on the specific needs of the biosphere reserve they are in.

Multiple choice

Which of the following methods should be taken for the conservation of forests and wildlife? a. The unauthorised felling of trees for timber trade and fire-wood should be stopped immediately. b. The natural habitats of wild animals should be preserved by establishing sanctuaries, reserves, etc. c. A total ban should be imposed on capturing or killing of any wild animal or bird.

  1. Only a

  2. Only a and b

  3. Only b and c

  4. Only c

  5. All of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct option, as all of the above are methods that should be taken for the conservation of forests and wildlife.

Multiple choice

Which of the following is not a role of a Biosphere Reserve?

  1. Biosphere Reserve helps in preventing the commercial exploitation of the area.

  2. Biosphere reserve is only for the protection of the wild animals of the area in their natural habitat.

  3. Biosphere Reserve provides opportunities for scientific research, environmental education and tourism.

  4. Biosphere Reserve promotes economic development of the area.

  5. Biosphere Reserve preserves the natural ecological conditions of the area.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. The protection of only the wild animals of the area in their natural habitat, is not the role of Biosphere Reserve. It helps to maintain the biodiversity of the area.

Multiple choice

The environment can be saved from excessive and indiscriminate use by practicing three R's. Which of the following are the three R's that can help in conserving natural resources?

  1. Reduce, redistribute and recycle

  2. Reduce, recycle and reuse

  3. Regenerate, recycle and reuse

  4. Regenerate, redistribute and recycle

  5. Reduce, recycle and redistribute.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This is the correct option. Reduce means less usage of natural resources should be done by cutting down on practices that lead to wastage. Recycling means the discarded items should be sent to respective industries for making fresh objects. Reuse means that if possible, one should use the same things again.

 
 

Multiple choice

Which of the following is/are the reasons due to which proper management of natural resources is required?

  1. The natural resources are limited.

  2. The proper management of resources takes long-term perspective into consideration.

  3. It can ensure equitable distribution of natural resources.

  4. The proper management of natural resources will take into consideration the damage caused to the environment during the extraction and find ways and means to minimise the damage.

  5. All of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

 
 

Multiple choice

Which of the following is/are the steps that should be taken for the conservation of wildlife?

  1. In case of Government authorised felling of forest trees, for every one acre, an equal area of tree saplings should be planted.

  2. The unauthorised felling of forest trees for timber and fuel-wood should be curbed immediately.

  3. The natural habitats of wild animals and birds should be preserved by establishing National Parks and Sanctuaries throughout the country.

  4. Laws should be made to impose a total ban on poaching of any animal belonging to the endangered species.

  5. All of the above

Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

 
 

Multiple choice

The Kaziranga sanctuary is famous for which of the following animals?

  1. Royal tiger

  2. One-horned rhinoceros

  3. Gir lion

  4. Birds
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Kaziranga National Park is a national park in the Golaghat and Nagaon districts of the state of Assam, India. The sanctuary, which hosts two-thirds of the world's great one-horned rhinoceroses, is a World Heritage Site.

Multiple choice

Great Indian Bustard is one of the endangered species. Their population has been diminishing due to which of the following reasons?

  1. Habitat loss
  2. Frequent poaching
  3. Construction of windmills

  1. 1 only

  2. 2 only

  3. 3 only

  4. All of the above
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The great Indian bustards have been vanishing over the years due to habitat loss. Thar Desert is the only landscape in the world that provides viable breeding population to great Indian bustards. While changing lifestyle in the desert and uncontrollable human activities have endangered the species, thousands of windmills around the park are posing a serious threat to the great Indian bustard.

Multiple choice

A national park is a park in use for conservation purposes and is a reserve of natural, semi-natural or developed land that a sovereign state declares or owns. Which of the following is not a national park?

  1. Bandipur

  2. Ranthambore

  3. Kanha

  4. Kaziranga

  5. Periyar
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

This is the correct answer as Periyar is a wildlife sanctuary in Kerala. A wildlife sanctuary provides protection to species from hunting, predation or competition. It is a protected area, a geographic territory within which wildlife is protected.