Soil Chemistry Quiz 1 (20 MCQs)

Quiz Instructions

Select an option to see the correct answer instantly.

1. Is loamy soil good for growing plants?

Correct Answer: A) Yes, it is the best.

2. What is the main component of soil?

Correct Answer: D) Rock particles.

3. What is the only process that removes carbon from the atmosphere?

Correct Answer: C) Photosynthesis.

4. How do animals get the nitrogen they need?

Correct Answer: C) From the food they eat.

5. A Horizon is also called

Correct Answer: A) Topsoil.

6. PH is important because

Correct Answer: D) All answers are correct.

7. What is the role of soil microorganisms?

Correct Answer: B) Make soil rich in humus.

8. It is the loss of soil by the action of both water and wind.

Correct Answer: A) Soil Erosion.

9. If the atmosphere is 78% N2, why can't we just get our nitrogen by breathing?

Correct Answer: A) We have no mechanism to break the triple bond of nitrogen between the atoms.

10. The alternate freezing and thawing ofthe water during the winter causes the cracks to enlarge, breaking off small pieces of rocks.

Correct Answer: B) Climate.

11. The following are products of decomposition except:

Correct Answer: D) Oxygen.

12. Soil water has certain functions in the soil.

Correct Answer: B) Infiltration.

13. Which type of soil has the largest particles?

Correct Answer: A) Sand.

14. Which of the following soil has the smallest particles

Correct Answer: A) Clayey Soil.

15. Toys, Pots and Statues are made of which soil type?

Correct Answer: B) Clayey Soil.

16. Water cannot penetrate through which layer?

Correct Answer: B) Bedrock.

17. Which layer is interaction between A-Horizon and B-Horizon

Correct Answer: A) E-Horizon.

18. What is sandy soil

Correct Answer: A) Containing greater proposition of big particles.

19. A solution with a pH greater than 7 would be considered:

Correct Answer: B) Alkaline/basic.

20. In which soil does the water seeps out very fast

Correct Answer: B) Sandy Soil.