Q. The method of soil conservation in the coastal and dry regions where rows of trees are planted to check the wind movement to protect soil cover is called

Answer

Correct Answer : Shelter belts

Q. The method of soil conservation in which bare ground between plants is covered with layer of organic matter like straw is called?

Answer

Correct Answer : Mulching

Q. The method of soil conservation in which different crops are grown in alternate rows and are sown at different times to protect the soil from rain wash is called?

Answer

Correct Answer : Intercropping

Q. The method of soil conservation in which rocks are piled up to slow down the flow of water which prevents gullies and further soil loss is called

Answer

Correct Answer : Rockdam

Q. The method of soil conservation in which stones grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?

Answer

Correct Answer : Contour barriers

Q. The middle zone of the earth with a thickness of 2780 km having an average density of 5.6 is known as:

Answer

Correct Answer : Pyrosphere

Q. The Milky way extends through a distance ________

Answer

Correct Answer : 105 light years

Q. The minimum fore at cover necessary to maintain ecological balance is

Answer

Correct Answer : 33% of the total land area

Q. The moat abundant element in sea water is

Answer

Correct Answer : Chlorine

Q. The mode or life or people living in Monsoon regions is

Answer

Correct Answer : Intensive subsistence cultivation