Land, water , soil, NG & Wildlife

The percentage of the Earth’s surface covered by land is

• 70%

• 50%

• 30%

• 90%

The thin layer of grainy substance covering the Earth’s surface is called

• Sand

• Humus

• Soil

• Clay

A natural disaster that involves the mass movement of rock and debris down a slope is called

• Flood

• Landslide

• Earthquake

• Avalanche

The agricultural practice that involves building steps on steep slopes is called

• Contour ploughing

• Terrace farming

• Mulching

• Shelter belts

The type of soil found in the floodplains of India is

• Black soil

• Desert soil

• Alluvial soil

• Laterite soil

The main reason for the uneven distribution of population is

• Cultural practices

• Land and climate variations

• Availability of transportation

• Government policies

The process of breaking down rocks through natural forces is called

• Weathering

• Erosion

• Sedimentation

• Landsliding

The layer of soil that contains humus and vegetation is called

• Subsoil

• Parent rock

• Topsoil

• Bedrock

Which method is used to slow down the flow of water and prevent soil erosion?

• Terrace farming

• Rock dam

• Intercropping

• Mulching

The largest percentage of freshwater is found in

• Rivers and lakes

• Ice sheets and glaciers

• Groundwater reservoirs

• Oceans