Water and its circulation

About how much of the earth's surface is covered with water?

• 79%

• 29%

• 70%

• 71%

The water cycle is also known as ?

• Precipitation

• Hydrological cycle

• Hydrospheric cycle

• Liquid cycle

All the water bodies such as the oceans , seas, rivers, lakes , etc together make up the ......?

What is fresh water?

• Purest form of water

• Water that contains a lot of minerals

• Water with very less disolved salts

• Water extracted from the ocean

About how much of the earth's water is in oceans and seas ?

• 90%

• 99%

• 93%

• 97%

Water containing a large amount of dissolved salts is called ...?

• Salt water

• Sodium hydroxide

• Saline water

• Salinified water

Salinity of water does not depend on which of the following factors

• Temperature of surrounding

• Rate of evaporation

• Amount of precipitation

• Amount of fresh water added to the ocean

Oceans are warmest near the .....?

• Poles

• Equator

• Tropic of cancer

• Tropic of Capricorn

Movements of ocean waters are caused due to which of the following factors? (Select all that is correct)

• Differences in temperature

• Similarity in density of sea water

• Prevailing winds

• Increase or decrease in the rate of evaporation

Alternate up and down movements of water particles caused by winds are called ....?