Water

False

All of these.

Unfit.

Water in which many salts are dissolved.

ocean and sea

evaporation

Evaporation

False

Heating

Cooling

No

Sunlight

Because evaporation taking place here is a slow process.

Both a and b.

Evaporation and transpiration.

Dew

Clouds

Rain are falling water drops

The circulation of water between ocean and land is known as water cycle.

Water cycle

The sowing of many crops depends on the arrival of monsoon.

True

Yes

Air helps the water vapour to rise up to form cloud.

Continuous process.

All of the above

Flood

Evaporation.

limited

Earth contains only approx. 3 percent of portable water.

Filtered and fit to drink water is called potable water.

Earth contains 70.9 percent water. Out of which only 3percent of water is useful.

Ans: d.

Ans: d.

The condition during which rain water being everywhere, even submerging the land is called as flood.

Droughts are the conditions which involve abnormally long period of insufficient or no rainfall.

Fresh water is naturally occurring water on Earth's surface in ice sheets, ice caps, glaciers, icebergs, bogs, ponds, lakes, rivers and streams, and underground as groundwater in aquifers and underground streams.

Groundwater is the water found underground in the cracks and spaces in soil, sand and rock. It is stored in and moves slowly

A dam is a barrier that stops or restricts the flow of water or underground streams. Reservoirs created by dams not only suppress floods but also provide water for irrigation.

Water held underground in the soil or in pores and crevices in rock.

Ans: b.

Water is one of the most important substances on earth. All plants and animals must have water to survive. Apart from drinking it to survive, people have many other uses for water.

Water is capable of dissolving a variety of different substances, which is why it is such a good solvent. And, water is called the "universal solvent" because it dissolves more substances than any other liquid.

Saline water (more commonly known as salt water) is water that contains a significant concentration of dissolved salts. The salt concentration is usually expressed in parts per thousand or parts per million (ppm). Sea water contains salt. Hence it is saline.

Although rainwater is considered the purest form of water, it is often much less than pure when it reaches the surface of the Earth. As rain moves through the atmosphere, it picks up particles and impurities that are in the air.

Water that collects on the surface of the ground is called ground water. All of the above collects on surfaces of the ground.

Under soil, the layer of soil beneath the surface soil and overlying the bedrock is called sub soil water

When light falls on these particles, they absorb some colors from the light and while some other color doesn't get absorbed. Water is colorless and transparent because all except a tiny bit of blue (for pure water) are reflected back. Since water reflects all colors together it looks colorless.

Earth contains 70.9 percent water.

The water table is the upper surface of the zone of saturation. The zone of saturation is where the pores and fractures of the ground are saturated with water.

Calcium, Sodium and Magnesium are present in water. These minerals are important (Calcium for strong bones and healthy teeth. Magnesium is also needed for strong bones. Sodium mineral is essential for balance in your fluid balance)

When anything solid turns into a gas without first becoming liquid, that's sublimation. No such process is involved in water cycle

Plants take in water from the soil to prepare their own food and also for other life processes. They release excess water into air in the form of water vapour by the process of transpiration.

The water present on the surface of oceans evaporates by the sun’s heat. This process of conversion of water from liquid state to vapour state is called evaporation. Evaporation also takes place from wet clothes, fields, ponds, lakes and rivers.

Evaporation, Condensation and Precipitation all are part of water cycle.

Clouds form when the invisible water vapour in the air condenses into visible water droplets or ice crystals. There is water around us all the time in the form of tiny gas particles, also known as water vapour. There are also tiny particles floating around in the air - such as salt and dust - these are called aerosols.

Droughts are the conditions which involve abnormally long period of insufficient or no rainfall.

The condition during which rain water being everywhere, even submerging the land is called as flood.

The cyclic movement of water from the atmosphere to the Earth and back to the atmosphere through various processes is called as water cycle.Different steps of water cycle include evaporation, transpiration, condensation, precipitation and surface run-off.

All these droplets collect to form bigger drops of water. Bigger water drops come down ads rain by the process of precipitation. If the air is too cold, the water drops can become snow or hail and may settle on the top of a mountain. When these snow or hail melts, they can become part of a river or a stream.

An aquifer is an underground layer of water-bearing permeable rock, rock fractures or unconsolidated materials (gravel, sand, or silt) from which groundwater can be extracted using water well. The study of water flow in aquifers and the characterization of aquifers are called hydrogeology.

The sun is what makes the water cycle work. The sun provides what almost everything on Earth needs to go—energy, or heat. Heat causes liquid and frozen water to evaporate into water vapor gas, which rises high in the sky to form clouds...clouds that move over the globe and drop rain and snow.

On cold, gray days even when it's too cold for snow to melt, glacial ice will eventually sublime into the air as water vapor. Glaciers experience a particular form of sublimation called ablation. Ablation is the process wherein the snow and ice of the glacier slowly begins to turn into vapor.

Plants take in water from the soil to prepare their own food and also for other life processes. They release excess water into air in the form of water vapour by the process of transpiration.

The evaporated water is carried away by warm air. As the warm air moves higher from the surface of the Earth, it starts to cool down. This water vapour condenses to form tiny water droplets which float in air to form clouds or fog.

The water present on the surface of oceans evaporates by the sun’s heat. This process of conversion of water from liquid state to vapour state is called evaporation. Evaporation also takes place from wet clothes, fields, ponds, lakes and rivers.

River water may contain germs that cause dangerous diseases like jaundice, dysentery, cholera and typhoid.

Due to presence of large about of common salt in it, sea water tastes salty. Hence called saline water.

The underground water is pumped out by digging deep wells till it reaches the water table.

A spring is the result of an aquifer being filled to the point that the water overflows onto the land surface. They range in size from intermittent seeps, which flow only after much rain, to huge pools flowing hundreds of millions of gallons daily.

Boiling kills bacteria present in water.

All of the above way helps in conservation of water

Dam helps in conversation of water for irrigation also produce electricity.

Rain water harvesting includes collection and storing of rain water from the roofs of houses and huge constructions. This is also called as roof-top rainwater harvesting. Constant use of fresh water from the ground results in water scarcity. Rain water harvesting increases the level of ground water.

Some amount of rain water is absorbed by the soil and settles down as ground water. Most of the rain water flows down the hills and mountains to collect into rivers, lakes or streams. Rain also washes away the topmost layer of the soil into water bodies.

Rain water harvesting includes collection and storing of rain water from the roofs of houses and huge constructions. This is also called as roof-top rainwater harvesting. Constant use of fresh water from the ground results in water scarcity. Rain water harvesting increases the level of ground water.

Permeability is defined as the property that governs the rate of flow of a fluid into a porous solid. If the concrete is impermeable than corrosive agents cannot penetrate and attack it.

Rain water harvesting includes collection and storing of rain water from the roofs of houses and huge constructions. This is also called as roof-top rainwater harvesting. Constant use of fresh water from the ground results in water scarcity. Rain water harvesting increases the level of ground water.

Rain water harvesting includes collection and storing of rain water from the roofs of houses and huge constructions. This is also called as roof-top rainwater harvesting. Constant use of fresh water from the ground results in water scarcity. Rain water harvesting increases the level of ground water.

Rain water harvesting includes collection and storing of rain water from the roofs of houses and huge constructions. This is also called as roof-top rainwater harvesting. Constant use of fresh water from the ground results in water scarcity. Rain water harvesting increases the level of ground water.

Destruction of trees leads to deforestation. And deforestation disturbs the water cycle. Hence lesser rainfall.