Explain the following :i. The propagation of rubber by the bud g

Subject

Geography

Class

ICSE Class 10

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 Multiple Choice QuestionsShort Answer Type

31.

What is the importance of agriculture in India ? Mention two factors.

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32.

Give geographical reasons for the following :

i. Tea is grown on hill slopes.

ii. Silver oak and banana trees are grown on coffee plantations. 

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33.

Explain the following :

i. The propagation of rubber by the bud grafting method.

ii.The propagation of sugarcane by ratooning. 

iii. The propagation of paddy by transplantations.


i. Bud grafting : This is done by the insertion of a strip bark containing a bud from high yielding clones under the bark of young seedling about 5cm high till they become united in 3 to 4 weeks. Then the old seedling stem is sawn off above the grafted bud. 

ii. Ratooning ; It is a process by which the cane is cut close to the ground where the sugar content is concentrated. After that the remaining stem begins to grow again and produces the second crop called ratoon.

iii. Transplantation : In this the sowing of seeds is usually done in well -prepared seed beds known as nurseries at the beginning of the monsoons. In about 4 weeks time when the plants are 15 to 20 cm tall they are carefully unrooted in bunches and replanted in the floded fields. 

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34.

Mention three problems of the sugar industry in India.

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35.

Name a state which produces short staple cotton. Which climate and soil conditions favour the cultivation of cotton in the state mentioned ?

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36.

Give geographical reasons for the following ;

Jute has to be retted. 

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37.

 Give two reasons why the woollen industry has not developed as well as the cotton industry in India. 

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38.

State two factors which favour the silk industry in Karnataka. 

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39.

In what way does the cotton industry contribute to the economy of India ? Mention any three relevant factors. 

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40.

What are petrochemicals ? Name any two products made from pet rot chemicals.

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