Question 2 :
It is important to make small check dams across the flooded gullies because they-<br/>(i) &#160;&#160;hold water for irrigation.<br/>(ii) &#160;hold water and prevent soil erosion.<br/>(iii) &#160;recharge ground water.<br/>(iv) &#160;hold water permanently. <br/>Select the correct options from the above stated reasons-<br/>

Question 4 :
The total area under forests in India is only ___ percent.

Question 5 :
Which of the following basic resource is not required for agriculture?

Question 6 :
The sand particles in Indian Desert are uniformly rounded because of :

Question 7 :
Utilising land for a variety of purposes is known as ______________.

Question 8 :
India ranks _______ in the world with respect to the extent of area under cultivation.

Question 9 :
A few gram seeds were placed in each of the three pots A, B, and C containing soil. The soil in Pot A is mixed with some green twigs and leaves. The soil in pot B is mixed with old cow dung while soil of pot C is mixed with urea. Pots are watered regularly. Which of the following will be observed after 10 days?

Question 12 :
The summit of Rio de Janeiro was convened for addressing urgent problems of development concerning.

Question 14 :
In which of the following states deforestation caused land degradation due to mining?

Question 20 :
Which of the following soils is suitable for cultivation of almost all kinds of crops?

Question 21 :
Soil is losing its fertility due to increased use of _________.<br/>

Question 23 :
Assertion: Over cropping reduces soil fertility. Reason: Soil fertility depends upon the soil composition.

Question 25 :
Assertion: Manures are plant and animal wastes. Reason: Manures are fertilizers.

Question 28 :
Consider the following statements-<br/>(a) Alluvial soil are formed by sediments deposited by rivers.<br/>(b) Black soil is found in the dry and Semi-dry areas of Rajasthan and Gujarat.<br/>(c) Red soil cannnot retain much moisture.&#160;<br/>(d) Laterite soil is found over lava deposits in the Deccan.<br/>Which of the above statements are correct?

Question 29 :
Which of the following soils is most suitable for the cultivation of cotton in India?

Question 30 :
Which of the following is not a tropical type of soil?

Question 31 :
Match the following.<table class="wysiwyg-table"><tbody><tr><td>A. Alluvial Soil</td><td>$$1$$. Cotton</td></tr><tr><td>B. Black Soil</td><td>$$2$$. Rice</td></tr><tr><td>C. Brown Soil</td><td>$$3$$. Tea</td></tr><tr><td>D. Red Soil</td><td>$$4$$. Wheat</td></tr></tbody></table>

Question 34 :
The soil which is a mixture of sand, clay and silt is known as __________.

Question 35 :
The soil is soft during wet and very hard during dry is _______.

Question 36 :
Which of the following soils are less fertile and need heavy manuring and irrigation?

Question 37 :
Consider the following statements.<br>$$1$$. Alluvial soil is rich in chemical properties and is capable of yielding Rabi and Kharif crops.<br>$$2$$. Black soil is suitable for cotton, groundnut.<br>$$3$$. Rabi crops are reaped in autumn after sowing in June.<br>Which of these statements are correct?<br>