Natural Resources - soil

Which is not a factor of soil

• Sun

• Water

• Living organisms

• Wind

• soil composition

It occurs when the impact of wind or water detaches and removes the soil particles, causing the soil to detoriate.

What are the 4 important biogeochemical cycles?

• Water cycle

• Nitrogen cycle

• Carbon cycle

• Oxygen cycle

• Rock cycle

Modern farming methods involve the use of large amounts of ________ & ________.

Meaning of humus?

• bits of decayed living organisms

• a soil structure

• bits of decayed non-living organisms

_________ grows on the surface of rocks.

• Fungi

• Plants

• Lichen

• Algae

Deforestation leads to

• soil pollution

• soil erosion

Topsoil is likely to be removed in

• hills or mountains

• land

• plains and plateau

• everywhere

The ______ and ______components of the biosphere constantly interact through biogeochemical cycles.

• biotic and abiotic

• lithosphere & hydrosphere

• lithosphere & atmosphere

• biotic and living

Soil is a

• compound

• mixture

• element

• particle