Science 1 Marks Question

The source of water on ground is rain.

True. 

An aquifer is a body of saturated rock through which water can easily move.

Bhujpur in the Kutch area of Gujarat.

The source of water in atmosphere is evaporation.

Water vapour present in the air around us.

The three forms of water:
At home are ice (solid), water (liquid) and steam (gas).

Groundwater that is stored between layers of land rock below the water table is known as aquifer.

A layer of mulch is put around the plants and trees for better absorption of water and to avoid run-off.

Ice is lighter than water so floats on water.

The three forms of water: In nature are snow (solid), water (liquid) and water vapour (gas).

With the help of tube wells or hand pumps.

The water which can be used by humans for drinking and cooking is defined as potable water.

When water at room is cooled, it contract until reaches 40c and then starts expanding. This strange behaviour of water is called anomalous expansion of water.

Water is used for various activities such as agriculture, industries, cooking, cleaning utensils, bathing, washing clothes, and, most importantly, for drinking.

Aquifer is groundwater stored between layers of hard rock below the water table.

Three forms of water are ice, water and vapour.

The process of seeping of water in the ground is called infiltration.

Water table is the level at which groundwater is available for pumping.

There is not enough water for human consumption because most of the water on earth is in seas and oceans which is not potable.

A large number of substances dissolve in water so it is called universal solvent. A liquid that dissolve another substance (solute) to form solution is called solvent.

Rainwater harvesting can be used to raise the water table in arid areas.

Traditionally in ancient times, people made bawris to collect rainwater in the old buildings. We still use these structures and are reviving them to harness rainwater.

The reservoir of dam or river can release water at our will. We can divert the flow of water at desired places where it is really needed and we can manage water resource effectively.

In ancient times, people used to make Bawris to store water.

The water bearing layer of the earth is aquifer.

The process of seeping of water into the ground is called infiltration.

Plants should be watered before sunrise or after sunset because water evaporates more quickly in sunlight.

Water circulates through the water cycle in the three forms, i.e. solid, liquid and gas.

False.
snow is also solid form of water.

When clouds rub together heat is produced that melt the cloud into droplets. These droplets collect to form bigger drops of water. Some of them may become too heavy fall down as rain. This process is known as precipitation.

Plants lose water in the form of water vapour by the process of transpiration. So, forests contribute a lot of water vapours formation which make clouds. Thus, plants help to revive water cycle.

Ice is lighter than water so it floats on water.

This means if you have water, you can think of future, i.e. no life is possible without water.

People obtain groundwater through tube wells and hand pumps.

The excessive use of water leads to water scarcity in an area.

Yes.

By drip irrigation there is no loss of water due to seepage, run-off or evaporation. Therefore, it helps in conserving water.

Infiltration is the process of seeping of water into the ground.

Increasing population, increasing industries, increasing agricultural activities and scanty rainfall.

Groundwater is water that seeps into the earth and gets collected between the layers of rocks.

Water cycle is the continuous circulation of water from the surface water through the air to the land and back to the sea.

True. 

By seepage of rainwater.