E. Long Answer Type Questions
1. What problems can arise due to acute water shortage?
2. The water on the earth is found in all the three states. Explain.
3. How is water distributed on the earth?
4. What are the major causes of groundwater depletion? Discuss.
5. List various ways of conserving water.
Answers
Answer:
1) When waters run dry, people can't get enough to drink, wash, or feed crops, and economic decline may occur. In addition, inadequate sanitation—a problem for 2.4 billion people—can lead to deadly diarrheal diseases, including cholera and typhoid fever, and other water-borne illnesses.
2) Water can occur in three states: solid (ice), liquid or gas (vapor). Solid water – ice is frozen water. When water freezes, its molecules move farther apart, making ice less dense than water. ... When you boil water, the water changes from a liquid to a gas or water vapor.
3) The Earth is a watery place. ... About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog
4) Groundwater depletion most commonly occurs because of the frequent pumping of water from the ground. We pump the water more quickly than it can renew itself, leading to a dangerous shortage in the groundwater supply.
5)Check your toilet for leaks. ...
Stop using your toilet as an ashtray or wastebasket. ...
Put a plastic bottle in your toilet tank. ...
Take shorter showers. ...
Install water-saving shower heads or flow restrictors. ...
Take baths. ...
Turn off the water while brushing your teeth. ...
Turn off the water while shaving.