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Agriculture in Tamil Nadu Book Back Questions 9th Social Science Lesson 29

9th Social Science Lesson 29

29] Agriculture in Tamil Nadu

Book Back Questions with Answer and Do You Know Box Content

Do You Know?

The area under irrigation is about 57 percent of the total area under cultivation.

Virtual water: The term “virtual water” was introduced by Tony Allen in 1990. The water consumed in the production process of an agricultural or industrial product is called “virtual water”. It is the hidden flow of water when food or other commodities are traded from one place to another. For instance, it takes 1340 cubic metres of water (based on the world average) to produce one metric ton of wheat. That is, if one metric ton of wheat is exported to another country, it means that 1340 cubic metres of water used to cultivate this amount of wheat is also being exported. India is the largest global freshwater user. India has been the fifth largest exporter of virtual water in the world.

Micro irrigation: Micro irrigation technology is a very good remedial measure to tackle shortage in irrigational water. This irrigation technology helps to have a higher yield when compared to the traditional irrigation methods. As only required amount of water is supplied at regular intervals, it increases the ability of water usage and productivity of the crop resulting in reduction of labour expenses and weed growth in the field. As the fertilizer is distributed through water, it increases the usage of fertilizer and the yield. As Tamil Nadu gets insufficient rainfall, the government has taken many measures to implement micro irrigation for proper distribution of water to crops that require more water.

River Cauvery is the 3rd largest river in South India. Its length is 765 km. The dams constructed across Cauvery in Tamil Nadu are Mettur Dam, Kallanai.

Choose the best answers:

1. Irrigated land surface out of cultivable land is

(a) 27%

(b) 57%

(c) 28%

(d) 49%

2. Out of the following, which is not a food crop?

(a) Bajra

(b) Ragi

(c) Maize

(d) Coconut

3. The productivity of paddy during the year 2014-2015

(a) 3,039 kg

(b) 4,429 kg

(c) 2,775 kg

(d) 3,519 kg

4. Both agricultural productivity and food productivity has

(a) Decreased

(b) Not stable

(c) Remained stable

(d) Increase

5. The North-East monsoon period in Tamil Nadu.

(a) August-October

(b) September-November

(c) October-December

(d) November-January

Fill in the blanks:

1. The major occupation of people in Tamil Nadu is ______________

2. Tamil Nadu receives rainfall all from the _____________ monsoon.

3. The total geographical area of Tamil Nadu is ______________ hectares.

Match the following:

1. Non-food crops – 79, 38,000

2. Dhal – Less than 1 hectare of cultivable land

3. North east monsoon – October-December

4. Small farmers – Urad Dal, Toor Dal, Green grams

5. No. of farmers in 2015-2016 – Coconut, Channa


Choose the correct answer:

1.57% 2. Coconut 3. 4429kg 4. Increase 5. October-December

Fill in the blanks:

1. Agriculture 2. North-East 3. One crore 30 lakh 33 thousand hectares

Match the following:

1. Coconut, Channa 2. Urad Dal, Toor Dal, Green grams 3. October-December 4. Less than 1 hectare of cultivable land 5. 79, 38,000

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