Essay on Water/Water essay

 

Essay on Water

Essay on Water 800 words/ Water essay 200 words for students

Essay on Water-800 words

Introduction

Water is a precious gift of God. Water is one of the most important resources after air on earth. Without water our earth becomes lifeless. All living being need water to live. We can survive a week without food but not more than three days without water so water is also called life-giving liquid.

Pure water is colorless, odorless, tasteless substance which is made up of hydrogen and oxygen atoms. We can get water in three states - liquid, solid and gaseous

Water sources

Though 70% of our earth covers with water but only 2.5% of fresh water. 97% of earth’s water is salty which isn’t drinkable, about 2% of water is locked in ice-caps and glaciers and remaining 1% is ground water.

There are 2 major types of water-

·       Surface water- Streams, rivers, lakes, reservoirs and wetlands. We get 78% of fresh water from surface water.

·       Ground water- Ground water is the water which is found beneath the earth’s surface. We use 22% of ground water.

We also use stormwater which falls from the sky such as rain, hail or snow etc. and wastewater, which has been polluted by human activities, mainly used for agricultural purposes.

We get water by digging wells, pumping water, collecting rainwater or using desalination to get fresh water from oceans. But today many parts of the world do not access the safe, clean drinking water.

Water Cycle

The water cycle or hydrologic cycle is the continuous movement of water of the earth. Evaporation, Condensation, Precipitation and Collection are the steps of water cycle.

Evaporation- During the day, the water of the river, lake oceans etc. heat up due to the sun’s heat and some of the water evaporates and ice to sublime into the air, called water vapour. The plants and trees also water through the stomata found on the leaves. This process is called transpiration.

Condensation- The water vapour then rises up high into the sky and cools down and again turns back into liquid. These tiny droplets of water form clouds. This process is called Condensation.

Precipitation- When more water condensed, the droplets of water in the clouds become too big and heavy, that the air do not hold them and the water droplets fall back again on the ground as rain, hail or snowfall.

Collection- The fallen precipitation such as rain, snow or hail collected again in the water bodies and the cycle starts again.

Importance of Water

Water is one of the most important and essential resources for all living beings on earth. Water is also called the life-giving liquid. 75% of human body is made up of water and 60% of an adult human body weight makes up by water. Every single cell of human body needs water to be active and function properly. Water helps to improve blood circulation and fight off illness and boost energy. Water helps to reduce weight and improve our skin complexion. Water helps to regulate our body temperature and also improve our brain function and protects our tissue, spinal cord and joint.

 The water is commonly used for drinking, bathing, washing, cleaning, watering plants, household needs, agricultural activities, industries, hydroelectricity etc. Around 70% of water is used for agricultural activities.

Plants also need water to make their food by photosynthesis. Water is very necessary for the survival of all living animals.

Some aquatic animals such as fish, crabs etc. are main sources of food for many people around the world

Waterways are an important means of trade and travels.

Water, ice and snow are the canters of many other sports, such as: boating, sailing, surfing, fishing, diving, boating and skiing.

Conservation of Water

Currently 17% of the world’s population do not access clean drinking water, according to WHO.

 So we have to try to save water. To save water we must reducing wastage of water, prevent damaging water quality and improve water management.

Conservation of water includes avoiding waterpollution. Due to global warming and growth of population, the amount of fresh water is decreasing which can bring more droughts, so we must save water.

Turn off the tap when brushing teeth, saving or soaping and also fix leaky taps and water pipes. We can save 6 litre of water a minute by turning off the tap. We can collect the rain water and use it to cleaning, washing clothes, watering plants etc. Using appliances which are most water and energy efficient. Take the right amount of water in the glass. If there is excess of water, pour the water into a container and put it in the garden or on the terrace for thirsty birds and insects.

Conclusion

“Water, water, every where, nor only drop to drink” – Samuel Taylor Coleridge.

Yes, it's true, 97% of water on the earth is undrinkable because it is saline or salt water. Clean and fresh water is the most precious resources so use the water wisely and be responsible of it.

Water essay-200 

Water is a vital and essential substance on the earth. About 70% of the earth is covered with water but 97.5% of this water is saltwater, remaining 2.5% of fresh water by of it 99% is underground water or ice and only 1% of fresh water found in lake, rivers, ponds, streams etc.

We get water from rivers, lakes, canals, ponds, streams etc. We get underground water by digging wells, pumping or tube wells

Water is needed for drinking, bathing, cleaning, washing etc. 70% of water is used for agriculture. Plants and trees use the water to make their food by photosynthesis. All animals need water to survive. 70% of human body is made up of water. Water helps to regulate our body temperature; improve brain function; protects our tissue, spinal cord; boosts our energy and reduces our weight.

The earth has limited water supply which goes and comes through the process of water cycle.

Without water there will be no life on the earth and our earth will become a lifeless planet. So we must save the water to save our earth. By adopting small practices to reduce water use, we can collectively make a significant impact on our environment and our communities in the long term. Committing to just a bit of effort can save our earth for our next generation.