The process in which the water moves between the oceans, atmosphere and land is called

(a)

River Cycle

(b)

Hydrologic Cycle

(c)

Rock Cycle

(d)

Life Cycle

The percentage of fresh water on the earth is

(a)

71

(b)

97

(c)

2.8

(d)

0.6

The process of changing of water from gaseous to liquid form is known as

(a)

Condensation

(b)

Evaporation

(c)

Sublimation

(d)

Rainfall

The evaporation of water from the leaves of plants is called

(a)

Transpiration

(b)

Condensation

(c)

Water vapour

(d)

Precipitation

Water that is good enough to drink is called

(a)

Groundwater

(b)

Surface water

(c)

Potable water

(d)

Artesian water

The degree of water vapour present in the atmosphere is known as__________.

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Humidity

The falling of water towards the earth surface from atmosphere in any form is known as _________.

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Precipitation

The precipitation with the rain drop size of < 0.5mm in diameter is known as ___________.

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Drizzle

Mist is denser than _______.

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Fog

Water boils at 212^oF temperature but, it begins to evaporate at 32^oF.

(a) True

(b) False

Mist is not the tiny droplets of water hanging in the air.

(a) True

(b) False

The sub-surface runoff is usually referred as interflow.

(a) True

(b) False

Infiltration of water is low in the region of non-porous soil.

Snowfall is common in the polar region and mountainous regions.

Write a short note on aquifer.

How is the dew formation takes place?

Distinguish between evaporation and transpiration.

Explain the run-off and its types.