Environmental Studies MCQ 1
Which layer of the atmosphere contains the ozone layer necessary for UV (ultraviolet) light absorption?
- None of these
Answer: A. Stratosphere
Explanation: A part of the earth's atmosphere is called the stratosphere. UV light in the stratosphere is absorbed by the ozone present.
Environmental Studies MCQ 2
What is the largest source of the world's commercial energy consumption?
- Natural gas
Answer: B. Oil
Explanation: Around the beginning of the twentieth century, coal dominated energy consumption. However, oil is now the main source of commercial energy consumption. It makes up about 39%.
Environmental Studies MCQ 3
How many biodiversity hotspots are there?
Answer: D. 36
Explanation: Currently, 36 biodiversity hotspots are known in the world. A region must satisfy two strict requirements in order to be considered a biodiversity hotspot: contain at least 1,500 vascular plant species that are unique to Earth and have lost the majority of their native vegetation by at least 70%.
Environmental Studies MCQ 4
The objective of Environmental studies is?
- Raising awareness of environmental issues
- To promote ecologically responsible conduct
- Establish a society that values environmental ethics.
- All of the above
Answer: D. All of the above
Explanation: The following are the goals of environmental studies: Raising awareness of environmental issues, promoting ecologically responsible conduct, and establishing a society that values environmental ethics.
Environmental Studies MCQ 5
Which two forms of alcohol are included in biofuels?
- Methanol and Ethanol
- Propanol and Ethanol
- Propanol and Methanol
- None of these
Answer: A. Methanol and Ethanol
Explanation: Both methanol and ethanol can be produced using biomass, fossil fuels, or perhaps the simplest combination of carbon dioxide and water.
Environmental Studies MCQ 6
Which of the following non-metallic minerals are essential?
- Marble, limestone, and granite
- Platinum, silver, and gold
- Coal, clay, cement, silica
- Iron, aluminium, zinc, and copper
Answer: C. Coal, clay, cement, silica
Explanation: Non-metallic minerals are important to many industries despite lacking metallic qualities including high thermic and electric conductivity, lustre, rigidity, and malleability.
Environmental Studies MCQ 7
Which of the following natural disasters occurs frequently?
Answer: A. Floods
Explanation: Floods are the most common sort of natural disaster, which happen when an excess of water submerges normally dry ground.
Environmental Studies MCQ 8
The atmosphere consists of 79% Nitrogen and 21% Oxygen by?
- All of these
Answer: B. Volume
Explanation: 21 per cent oxygen and 79 per cent nitrogen make up the atmosphere's volume, whereas 23.2 per cent oxygen and 76.8 per cent nitrogen make up its weight.
Environmental Studies MCQ 9
What type of human activity can lower the atmospheric oxygen content?
- None of the above
Answer: A. Deforestation
Explanation: Deforestation is the practice of cutting down trees for economic gain. The loss of trees and plants has a negative impact on oxygen levels. Deforestation thereby lowers the atmospheric oxygen concentration.
Environmental Studies MCQ 10
What is Sustainable Development?
- Balancing current requirements with those of the future.
- The advancement of humankind.
- A balance between human wants and the planet's capacity to supply resources.
- All the above.
Answer: C. Balance between human wants and the planet's capacity to supply resources.
Explanation: Sustainable development means maintaining the balance between human wants and the planet's capacity to supply resources.