Horizon

Q. Groundwater gets collected in which of the following horizons?

1. A-horizon
2. B-horizon
3. C-horizon
4. Both (A) and (B)

Q.

Match the following and choose the correct option:

i. A - horizon a. Small lumps of rocks

ii. B - horizon b. Hard layer which is difficult to dig

iii. C - horizon c. Dark in colour and rich in humus

iv. R -horizon d. Less humus and more minerals, compact

1. i - a; ii - b; iii - c; iv - d

2. i - b; ii - c; iii - a; iv - d

3. i - c; ii - d; iii - a; iv - b

4. i - d; ii - c; iii - b; iv - a

Q. Humus is formed in

1. Horizon - B
2. Both A and B
3. Horizon - O
4. Horizon - A