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Water is very precious for all living beings. What will happen in future if we do not save water now?

Water is essential for all living beings. There can be no life without it. If we do not save water now we face scarcity of water and it may lead... View Article

What is groundwater? What are the sources of water which are fed by groundwater?

Groundwater is the water present below the earth’s surface and is a vast resource of water. Almost 22 per cent of water is below the surface land... View Article

From where do the following usually get water? In which form is water present in them? (a) Clouds (b) Plants (c) Mountain tops (d) Aquifer (e) Animals

On the earth’s surface, there are three different forms of water namely solid, liquid and gaseous. Water exists in different forms due to... View Article

A list of jumbled words is given here. Write the correct form of each word. (a) WASHFERRET (b) CHARREGE (c) QUIFERA (d) WOSN

(a) freshwater Water is a precious natural resource. All living things need water for their survival. We cannot imagine life without water. We... View Article

How can you observe the three forms of water in (i) nature and (ii) at home?

Nature: Snow (solid), water (liquid), water vapour (gas). Home: Ice (solid), water (liquid), steam (gas). The water circulating in the water... View Article

Place the following statements in a proper order to form a meaningful paragraph. (a) Which in turn decreases the seepage of rainwater into the ground. (b) This decreases the open areas like park and playgrounds. (c) Increasing population create demand for construction of houses, shops, offices, roads and pavements. (d) This results in depletion of the water table and creates scarcity of more water.

The correct sequence is- (c) The increasing population creates demand for the construction of houses, shops, offices, roads, and pavements. (b)... View Article

Rajasthan is a _____ and dry place. The challenge of natural _ of water was met by a successful experiment. A band of social __ had transformed a _ area into a green place. They have revived five dried-up by constructing water _______ structures.

Rajasthan is a hot and dry place. The challenge of natural scarcity of water was met by a successful experiment. A band of social workers had... View Article

The rainwater and from other sources such as rivers and ponds seeps through the and fills the empty spaces and cracks deep below the ground. The process of seeping of water into the ground is called .

The rainwater and water from other sources such as rivers and ponds seeps through the soil and fills the empty spaces and cracks deep below the... View Article

State whether the following statements are true or false. If false, give the correct statement. (a) The process of seeping of water into the ground is called filtration. (b) 51% of the earth’s surface is covered with water. (c) The year 2003 was observed as the International Year of Freshwater. (d) Snow and ice both are solid forms of water.

(a) False, it is called infiltration Rainwater gets absorbed into the ground through the process of infiltration. The level of absorption varies... View Article

What is the source of water in each of the following? (a) Wells (b) Ground (c) Atmosphere

Water is one of the natural resources, which are found in an adequate amount. It is an essential source for the existence of life on the planet... View Article

Some definitions are given below which can be corrected by changing one word. Correct them. (a) An aquifer is a groundwater stored between layers of hard rock above the water table. (b) The process of evaporation of water in the ground is called infiltration. (c) The evaporation of water from oceans and its arrival back into oceans is called vapour cycle.

(a) Aquifer is groundwater stored between layers of hard rock below the water table. When we dig into the ground, we encounter the water table... View Article

State whether the following statements are True or False. If false, write the correct statement. (a) Water vapour is the gaseous form of water. (b) Ice is solid whereas snow is the semi-solid form of water. (c) Ocean water cannot be used for domestic purposes. (d) The rapid growth of industries is one of the causes of water shortage.

a) True Water can exist in 3 different physical states – solid, liquid, and gaseous. In the solid state, water exists in the form of ice or... View Article

Which of the following inhibits the seepage of rainwater into the ground? (a) A pukka floor (b) Playground (c) Grass lawn (d) Forest land

a) A Pucca floor The seepage of water is not possible in the case of pucca floors and concrete floors. All other options involve the... View Article

Water cycle does not involve which of the following? (a) Evaporation (b) Condensation (c) Formation of clouds (d) Rainwater harvesting

(d) Rainwater harvesting Rainwater harvesting is the simple process or technology used to conserve Rainwater by collecting, storing, conveying... View Article

“Every Drop Counts” is a slogan related to (a) counting of drops of any liquid. (b) counting of water drops. (c) importance of water. (d) importance of counting.

c) Importance of water The slogan 'every drop counts' completely refers to the importance of water on this planet. Water is the most basic need... View Article

The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper hygiene per person per day is a minimum of (a) 5 litres (b) 15 litres (c) 30 litres (d) 50 litres

a) 50 litres, two and a half The amount of water recommended by the United Nations for drinking, washing, cooking and maintaining proper... View Article

On which of the following day is World Water Day observed? (a) 22 March (b) 14 November (c) 2 October (d) 21 December

a) 22 March Water is one of the most important resources gifted to us after air. It forms the basis of life for every living organism on earth.... View Article

Which of the following is a way to use water economically? (a) Construction of bawris (b) Rainwater harvesting (c) Drip irrigation (d) Infiltration

c) Drip irrigation Drip irrigation is the most economical way to use water since all the nutrients of the water are preserved and are directly... View Article

A man digging the ground near a water body found that the soil was moist. As he kept digging deeper and deeper he reached a level where all the spaces between particles of soil and gaps between rocks were filled with water. The upper limit of this layer is called (a) water level. (b) water table. (c) groundwater. (d) water limit.

c) water table The upper limit of this layer where water is present between particles of soil and gaps between rocks is called water table and... View Article

Which of the following are not the liquid forms of water? (i) Snow (ii) Lake water (iii) River water (iv) Water vapour (v) Ice Choose the correct combination from the options below. (a) (i), (iv) and (v) (b) (i) and (ii) (c) (ii) and (iii) (d) (iv) only

a) (i), (iv) and (v) Snow and ice are solid forms of water whereas water vapour is a gaseous form of water. The water circulated in water cycle... View Article

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