Morning Star solutions for टोटल जियोग्राफी वॉल्यूम १ [इंग्रजी] इयत्ता १० आयसीएसई chapter 9 - Water Resources [Latest edition]

What is an aquifer?

Which of the following measures are not used to conserve water?

Assertion (A): Many states have recorded a sharp fall in the groundwater levels, ranging from 70 to 80 per cent.

Reason (R): With the increase in population the demand for water has risen.

Which of the following is a cause for the decline in groundwater levels?

Drip irrigation is also known as ______.

Tanks form the main source of irrigation in ______.

Assertion (A): Cherrapunji, which receives about 11,000 mm of rainfall annually, suffers from acute shortage of drinking water.

Reason (R): Most of the rain falling on the surface tends to flow away rapidly, leaving very little for the recharge of groundwater.

______ is not a conventional means of irrigation.

Rahul is constructing a house in Mathura. Of the following methods select those that he can use to ensure rainwater harvesting.

1. A garden
2. Porous tiles in his driveway
3. Rooftop rainwater harvesting
4. Borewell

Assertion (A): Runoff from only paved surfaces is used for storing rainwater.

Reason (R): It is relatively free of bacteriological contamination.

Most of the canals in India belong to which category?

Which of the following least irrigated state of India is solely dependent on canals?

Assertion (A): For farmers rainfall is still the most important source of water.

Reason (R): Irrigation canals and tanks have been constructed by rulers since ancient times.

You have to maintain one public park in your colony. Which method of irrigation would you prefer?

What do you understand by the term ‘water resource’?

Give two points of difference between ‘surface water’ and ‘groundwater’.

Give a geographical reason for the following:

Need to adopt different means of irrigation.

Give a geographical reason for the following:

Need for conserving water.

Give a geographical reason for the following:

Man is responsible for water crisis.

1. What is meant by water harvesting?
2. State the objectives of water harvesting schemes.

What is meant by the term irrigation?

What is meant by the term ‘water scarcity’?

What has caused water scarcity in India?

Give a geographical reason for the following:

Inundation canals are being converted to perennial canals.

Give a geographical reason for the following:

Tank irrigation is preferred over other means of irrigation in Peninsular India.

Give a geographical reason for the following:

Groundwater reserves are depleting at a fast rate.

What is meant by traditional or conventional methods of irrigation?

Name any two conventional methods of irrigation.

State any two drawbacks of conventional methods of irrigation.

Mention any three advantages of well irrigation in India.

Describe the disadvantages of well irrigation.

Give a geographical reason for the following:

Well irrigation is confined mainly to the alluvial plains.

Give a geographical reason for the following:

In Tamil Nadu, nearly one-third of the net irrigated area is under canal irrigation.

Give a geographical reason for the following:

Drip irrigation reduces loss of water through evaporation.

Name any two states where well irrigation is practised.

Give one advantage of tubewell irrigation.

Give one disadvantage of tube-well irrigation.

What are the two types of canals?

Name two states where perennial canals are widely used.

How are the fields irrigated using the Persian wheel method?

Give a geographical reason for the following:

Canals make the soil infertile.

Give a geographical reason for the following:

Tubewell irrigation is quite expensive.

Give a geographical reason for the following:

Excessive accumulation of salts make the soils unsuitable for cultivation.

1. What conditions favour the development of canal irrigation in the mentioned area?
2. State two disadvantages of it.

Briefly explain why groundwater levels are dropping rapidly in India.

How can groundwater be recharged?

Name a method to recharge groundwater.

Give a geographical reason for the following:

Many farmers in India still use wells.

Give a geographical reason for the following:

There is very little recharge of groundwater.

Give a geographical reason for the following:

Tubewells are important in Punjab.

What is watershed management?

How is watershed management beneficial for farmers in the long run?

What is meant by furrow irrigation?

What is the advantage of furrow irrigation?

Explain briefly the need to conserve water.

“The modern means of irrigation are gaining popularity.” Give two reasons to justify this statement. 

Give a geographical reason for the following:

Sprinkler irrigation helps in conserving water.

Give a geographical reason for the following:

Drip irrigation is quite expensive.

What is ‘drip irrigation’?

How is ‘drip irrigation’ versatile?

Picture shows drip irrigation in a field. List its advantages.

Picture is Agrasen ki Baoli (New Delhi) - a step-well whose current form is believed to be constructed in the 14th century. The water level varies seasonally. It is designed to ensure water availability throughout the year with all fluctuations. Write a short note on any traditional irrigation method.

Give a geographical reason for the following:

Loss of water due to evaporation is highest in tanks.

Give a geographical reason for the following:

Many cities have banned construction of tubewells.

Give a geographical reason for the following:

Rabi crops are grown in areas with irrigation facilities.

Given a choice which modern method of irrigation would you use to irrigate your farm? Give reasons to support your answer.

With the help of a suitable sketch show the various methods of rainwater harvesting.

Enlist the ways in which water can be reused and recycled in various activities.

Make a Power Point Presentation showing the various methods used for rainwater harvesting from ancient times to the present.

Nature has endowed India with plentiful water resources. Despite this, acute shortage of water is noticed in some states. What could be the reasons for this shortage?

In your city, critical shortage of water has been reported due to a sharp fall in the groundwater level. What steps you will take to check this scarcity of water?

Which one would be suitable for your city? Have you observed any of these traditional systems? If you have, briefly describe it.