Quiz – 3 , Soil

A thin layer of grainy substance covering the surface of the Earth is called ________

• Water

• Wild life

• Soil

• Plants

__________ determine the types of soil

• Land use

• Weathering

• Land slides

• Landforms

The _________ make the soil fertile

• Right mix of minerals

• Right mix of fertilizers

• Right mix of organic matter

• Right mix of pesticides

The breaking up and decay of exposed rocks by temperature changes , frost action , plants , animals and human activity is called __________

The two major factors of soil formation are ________ and _______

• Time and relief

• Minerals and organic matter

• Parent rock and Climatic factors

• Flora and fauna

___________ determines thickness of soil profile

• Time

• Climate

• Relief

• Microorganisms

The Climatic factor affecting the soil formation is __________

• Mineral content

• Soil colour

• Temperature

• Rainfall

Covering the bare ground between plants with a layer of organic matter like straw is called __________

• Rock dam

• Shelter belts

• Mulching

• Terrace farming

Different crops are grown in alternate rows and sown at different times is called _______

• Mulching

• Intercropping

• Rock dam

• Terrace farming

The Conservation method of soil is _____________

• Deforestation

• Contour barriers

• Overgrazing

• Shelter belts