1. Humus is found in the topmost layer of soil (A-horizon).

2. Humus is a black or brown colored substance which makes the soil fertile.

3. It is an important source of nutrients for plants, and it helps the soil absorb water and air.

4. There are many ways to promote humus, including-

- Leaving crop residues in the field

- Using livestock manure

- making compost

1. Among the options, terabyte represents the largest amount of data.

2. Computer memory is usually measured in bytes.

3. The storage capacity of a hard disk is measured in megabytes, gigabytes and terabytes.

INS Virat is a Centaur class aircraft carrier currently in service with the Indian Navy. INS Virat is the flagship of the Indian Navy the oldest carrier in service. Virat is currently the second largest ship in the Indian Navy after the INS Jyoti Viraat was completed and commissioned in 1959 as the Royal Navy’s HMS Hermes and was transferred to India in 1987.