TOPIC: ENVIRONMENTAL SCIENCES
1. Which of the following gases is primarily responsible for the greenhouse effect and global warming?
a) Oxygen
b) Nitrogen
c) Carbon dioxide
d) Hydrogen
2. Biodiversity refers to:
a) The total number of species on Earth
b) The genetic variation within species
c) The variety of ecosystems on the planet
d) The abundance of animals in a given area
3. The process by which fertile land becomes desert due to various factors, such as climate change and human activities, is known as:
a) Deforestation
b) Desertification
c) Erosion
d) Urbanization
4. What is the main source of acid rain?
a) Volcanic activity
b) Industrial emissions
c) Forest fires
d) Ocean pollution
5. Ozone depletion is primarily caused by the release of:
a) Carbon dioxide
b) Nitrous oxide
c) Sulfur dioxide
d) Chlorofluorocarbons (CFCs)
Read More: Test No. 93
6. Which international agreement aims to protect the ozone layer by phasing out the production and consumption of ozone-depleting substances?
a) Kyoto Protocol
b) Paris Agreement
c) Montreal Protocol
d) Rio Declaration
7. The term "biomagnification" refers to the process where:
a) Species migrate to different habitats
b) Pesticides break down in the environment
c) Toxins become more concentrated as they move up the food chain
d) Species evolve in response to changing climates
8. Eutrophication is caused by an excessive influx of:
a) Oxygen
b) Carbon dioxide
c) Nutrients like nitrogen and phosphorus
d) Heavy metals
9. The "tragedy of the commons" refers to:
a) Overutilization of shared resources leading to depletion
b) Destruction of natural habitats
c) Competition among species for limited resources
d) Pollution caused by industries
10. Which renewable energy source harnesses the kinetic energy of flowing water to generate electricity?
a) Solar power
b) Wind power
c) Geothermal energy
d) Hydroelectric power