Ocean : 97% :: Fresh water : ……………

1. 3%
2. 2.3%
3. 0.7%
4. 0.66%

Underground water is found in:

1. soil
2. subsoil
3. underground streams
4. All of the above.

Apogee : Earth-moon distance …………… :: Perigee : Earth-moon distance ……………

1. maximum, minimum
2. minimum, maximum
3. equal, equal
4. All of the above.

…………… flow from the lower latitudes towards the higher latitudes.

1. Warm currents
2. Cold currents
3. Surface currents
4. Deep water currents