LAND/SOIL/NATURAL VEGETATION

Which one of the following is not a factor of soil formation?

• Time

• Soil texture

• Organic matter

• Mulching

Which is the most appropriate method to check soil erosion on steep slopes?

• shelter belts

• terrace farming

• mulching

• contour barriers

Which one of the following determines the land use pattern?

• climate

• topography

• minerals

• all the above

90% of the total world population resides in .................. of the land area.

• 10%

• 20%

• 30%

• 40%

The thin layer of grainy substance covering the surface of the earth is called

• land

• soil

• Humus

• minerals

The breaking up of rocks is known as .......

• Erosion

• Reclamation

• Degradation

• weathering

Out of the total fresh water available, nearly .................. is in the form of "ICE" and is found in glaciers in Antarctica, Greenland, mountain regions, etc.

• 1%

• 2%

• 3%

• 4%

Sliding of huge debris, rocks and other material down the slope is know as:

• Volcanic Eruptions

• Earthquake

• Land slides

• Tsunami

Trees in these .................. shed their leaves in a particular season in order to conserve loss of moisture through transpiration: (select the incorrect one)

• Evergreen Forests

• Tundra

• Deforestation

• Deciduous forest

........... irrigation can be used in dry regions, where evaporation is very high.

• Sprinklers

• Bucket

• Save Water

• Drip irrigation