Environmental Sciences Quiz 154 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. The unit of noise level is

Correct Answer: A) DB.

2. Our atmosphere is ..... % nitrogen gas

Correct Answer: D) 78.

3. Which is NOT an example of biomass?

Correct Answer: D) Petroleum.

4. Organisms that feed on waste or dead bodies of organism.

Correct Answer: D) Tetrabores.

5. Match The Definition:An area of land where all water that drains off goes into a river, river system, or other body of water.

Correct Answer: A) Watershed.

6. The decision-making model

Correct Answer: D) All options are correct.

7. Which of the following is an example of salty water?

Correct Answer: C) Oceans.

8. The reverse of photosynthesis-Sugars are used for metabolism and change "fuel" back into CO2.

Correct Answer: D) Respiration.

9. A mineral that helps move oxygen through the bloodstream

Correct Answer: C) Iron.

10. A ..... is a combination of two or more atoms of the same type are called

Correct Answer: A) Molecules.

11. The following methods are adopted for discarding wastes:

Correct Answer: D) All the above.

12. Which is an immediate factor for the current food crisis?

Correct Answer: C) Drought in areas with a high crop yield.

13. The number of females and males of each age contained in a population .....

Correct Answer: C) Age structure.

14. Most air pollution is produced by

Correct Answer: B) Fuel burning.

15. Single-celled organisms with cell walls but no nuclei are

Correct Answer: A) Bacteria.

16. In order for humans to exist indefinitely the world must be

Correct Answer: A) Sustainable.

17. The plants, wolves, bears, otters, bison, and foxes in Yellowstone National Park are a .....

Correct Answer: C) Community.

18. Geologists have classified rocks into three major groups of rocks which are:

Correct Answer: B) Igneous, sedimentary and metamorphic rocks.

19. A type of symbiosis in which one organism is helped, and the other is not harmed.

Correct Answer: B) Commensalism.

20. Bees help flowers by .....

Correct Answer: B) By moving pollen from flower to flower to pollinate them.