Tag: the water cycle

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Questions Related to the water cycle

Multiple choice evs sources of water and water cycle groundwater and depletion of water table rain: where does it come from availability and forms of water the water cycle

Rainfall patterns depend on

  1. The underground water table

  2. The number of water bodies in an area

  3. The density pattern of human population in an area

  4. The prevailing season in an area.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Rainfall pattern will depend on number of water bodies in an area, as there will be large water bodies, (ocean, river) the rate of evaporation would be high, which will help to cause rain in the area.

Multiple choice evs sources of water and water cycle groundwater and depletion of water table rain: where does it come from availability and forms of water the water cycle

More than 70% of world's fresh water is contained in

  1. Antarctica

  2. Polar ice

  3. Glaciers and Mountains

  4. Greenland
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
More than 70% of world's fresh water is contained in Polar ice. These polar ice are present in the form of two sheets in Antartica and Greenland.
So, the correct answer is 'Polar ice'.
Multiple choice chemistry rain: where does it come from sources of water and water cycle availability and forms of water the water cycle

Evaporation is defined as:

  1. conversion of ice in water.

  2. conversion of water into water vapours.

  3. conversion of water vapours into the water.

  4. freezing of water into ice.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When water is heated it absorbs energy and changes its state from liquid (water) to gas(water vapours). This process of converting water in vapours is known as vaporisation.

Multiple choice biology rain: where does it come from sources of water and water cycle availability and forms of water the water cycle

Which of the following processes is unsuitable for softening water possessing temporary hardness?

  1. Adding calcium hydroxide

  2. Filtration

  3. Boiling

  4. Distillation
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

If you added calcium oxide to water, it would react and make calcium hydroxide. Calcium hydroxide is produced, however, when calcium oxide is mixed (or slaked) with water. Overall, nothing significant happens when you mic Ca(OH)2 with water, certainly no reaction occurs. So, the correct option is "A" (Adding calcium hydroxide).

Multiple choice evs rain: where does it come from sources of water and water cycle availability and forms of water the water cycle

Which of the following is the most important factor in balancing the amount of freshwater on earth?

  1. Water cycle

  2. Greenhouse effect

  3. Waste water treatment plant

  4. Transpiration
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Water cycle is a continuous cycle in which water changes from water vapour in the atmosphere, through liquid water through condensation and precipitation and then back to water vapour through evaporation, transpiration and respiration. 

Among the given options, $A$ is the correct one.