Sources of Water
Trending Questions
Q.
Write a short note on problems of ground water in India
Q.
What are khadins and johads?
Q. What are the problems with constructing wells in plateaus?
- Due to low rainfall, the underground water level is very deep.
- It is difficult to dig wells in plateaus because of rocks underneath.
- There may be little or no water in the wells when they are dug up.
- Once used, it takes at least two days for the water to be replenished in the wells.
Q. Why are tanks like Salakamcheruvu drying out in recent years?
- The villagers are taking very good care of their tanks
- Villagers are taking good care of the area from where water is coming into the tanks
- The villagers are not taking very good care of their tanks
- Villagers are not taking good care of the area from where water is coming into the tanks
Q. What are the small water storage ponds in Salakamcheruvu called?
- Samudra
- Kuntas
- Nadi
- Konda
Q.
5. How do the areas covered with concrete affect the availability of groundwater?
Q. Why are plateaus suitable for building tanks that can be used to store water?
- Plateaus are rocky
- Existence of small hills
- Plateaus are steep
- Presence of natural depressions
Q.
How much percent of the Earth is covered with water?
71
43
29
97
Q. What have farmers started using for irrigation in recent years instead of wells?
- Hand pumps
- Tanks
- Borewells
- Backwaters
Q. At what depth (in feet) from the surface is water found in Salakamcheruvu?
- 32
- 5
- 250
- 120
Q. What are the ways in which land use can be made sustainable in Salakamcheurvu?
- Converting forest lands into agricultural land.
- Ensuring that groundwater is recharged.
- Using chemical fertilizers and pesticides to improve yield.
- Maintaining soil fertility
Q. Why are tanks used in Salakamcheruvu?
- Rain is unreliable in this area.
- Tanks tap water that flows from seasonal streams.
- Tanks are suitable in plateaus due to natural depressions.
- Tanks store water that seeps into the soil.
Q. Which of the following are the reasons why it is diffcult to dig wells in Salakamcheruvu?
- Presence of rocks underneath the soil
- High availability of groundwater
- The groundwater level is too low
- Plenty of rainfall
Q. Why are borewells are getting deeper and deeper with time?
- Rocky land
- Greed of people
- Low rainfall
- Ground water depletion
Q.
Is Florida water drinkable?
Q. Why are plateaus suited for building tanks?
- The natural elevation in landscape
- The natural depression in the landscape
- The existence of small hills
- The existence of big hills
Q. What are some of the difficulties associated with wells in Salakamcheruvu?
- Digging wells is difficult because of the rocky terrain.
- These wells tend to constantly overflow with water.
- Digging wells is more expensive than digging borewells.
- Wells take over two days to replenish themselves.
Q. Why are the cheruvus and tanks in Salakamcheruvu drying up?
- Only a few people depend on them
- Scarce rainfall
- Borewells are used by a large number of people
- Poor maintenance
Q. What is the main source of water in the Salakamcheruvu village?
- Streams
- Canals
- Ground water
- All of the above
Q. How deep would you have to dig in order to find water in Salakamcheruvu ?
- About 50 feet
- About 250 feet
- About 450 feet
- About 150 feet
Q. In a small town, the number of water pumps, concrete houses and roads increased. The water table of that place will:
- get lower
- get higher
- remain unaffected
- none of these