Give geographical reason for:
i. different regions in India having different kinds of soil.
ii. black soil being suitable for growth of cotton.
iii.the conservation of soil as a natural resource.
i. India has a vast latitudinal and longitudinal extent. Different climatic conditions prevail over different parts of the country. The nature and composition of rocks differ from region to region and hence different regions in India having different kinds of soil.
ii. Cotton grows well in soil which can hold water and has good drainage. This is because excessive water logging and moisture can harm the cotton crop. Since black soil has a high level of clay, it has good water holding capacity making it suitable for the growth of cotton.
iii. Conservation of soil is essential, as the loss of the top layer of soil with all the nutrients from the surface of the earth, may result in the reduction of agricultural productivity.
State the benefits that are derived from the local winds that blow in summer in the following states:
i. Kerala
ii. West Bengal
Mention the geographical reason for each of the followings:
i. Patna receives heavier rain than Delhi.
ii. Western Rajasthan receives no rain from the Arabian Sea branch of the South West Monsoon winds.
iii. Mangalore is not cold even in the month of December.
Study the climatic data given and answer the question that follow:
|
|
Jan |
Feb |
Mar |
Apr |
May |
Jun |
July |
Aug |
Sep |
Oct |
Nov |
Dec |
|
Temp. C |
25.0 |
25.5 |
26.3 |
27.1 |
30.0 |
36.2 |
36.0 |
35.9 |
30.3 |
28.4 |
27.0 |
24.6 |
|
Rainfall cm |
24.5 |
23.1 |
15.0 |
2.4 |
0.1 |
11.0 |
9.3 |
7.2 |
4.0 |
9.4 |
14.5 |
20.4 |
i. Calculate the annual temperature range.
ii. What is the total annual rainfall?
iii.Presuming that the station is located in India, give a reason for its location being on the east coast or west coast of India.
Name the soil which -
i. is good for the cultivation of cashew nuts.
ii. covers almost all of west Bengal
iii.is a result of leaching.
Mention two reasons why monsoon deciduous forests are commercially more valuable than the other types of forests.
How do forests----
i. have a favourable effect on the climate of the region?
ii. act as a flood control measure?
