10 G.10 Water Resources - 1

The main source of water in India is

• Surface water

• Precipitation

• Ground water;

• Oceans.

We need to conserve water because

• Irrigation utilizes more than 90% of the total fresh water

• Water resources are over-exploited

• Over population leads to water scarcity

• All of the above

Which of the following is not an objective of rain water harvesting

• Avoid flooding roads

• Polluting water

• Reducing soil erosion

• educing run off which chokes drains.

In the Western Himalayas water storing mechanism are called

• Khatri

• Diggi

• Bhandara

• Zing

Which of the following is an order for water harvesting mechanism?

• Catchment, recharge facility, storage facility, conduits

• Catchment, storage facility, recharge facility, conduits

• Catchment, conduits, storage facility, recharge facility

• Catchment, conduits, recharge facility, storage facility

Ground water is recharged by different aquifers, which of the following is not an aquifer:

• Bore Well

• Dug Well

• Sprinkler

• Recharge Pit

Persian wheel method uses ____ for irrigation of fields

• Draught animals only

• Buckets only

• Draught animals and buckets

• None of the above.

The inclined plane method is also known as

• Mhote

• Zing

• Kuhl

• Mhante

Inundation Canals can be used

• Throughout the year

• Only during rainy season

• Only in the summer season

• Only in the winter season

In furrow irrigation the furrows must be of

• Equal dimension

• Unequal dimension

• Against the gravity

• Channels should not be parallel