Water

Q.

Salt concentration (Salinity) of the sea measured in parts per thousand is:

1. 10 – 15

2. 30 – 70

3. 0 – 5

4. 30 – 35

Q. Upper layer of water in a water body is known as

1. Hypolimnion
2. Epilimnion
3. Thermocline
4. Hydroline

Q. The minimal point of water content in the soil required for the survival of plants is called ___

1. Field capacity
2. Hypolimnion
3. Thermocline
4. Wilting point

Q. The maximum amount of water that soil can hold is called ___

1. Wilting point
2. Water potential
3. Field capacity
4. Osmotic potential

Q. The maximum amount of water that soil can hold is called ___

1. Wilting point
2. Water potential
3. Field capacity
4. Osmotic potential