Science Quiz

Causes of Bush burning

• Farming

• Hunting

• Erosion

• Air/Wind Action

• All of the above

Desertification means

• transformation of a vegetative land into an arid or desert land

• cutting down of trees for firewood

• excessive removal of grass by live – stock

• absence of rain for a long time

Which of the following is a major cause of desertification

• harvesting

• bush burning

• manure application

• too much rain

• planting

Erosion causes Desertification

• True

• False

A large mass of ice that move is known as

• Stream

• Glacier

• Mineral

• Sediment

All these are effects of bush burning except

• Afforestation

• Harmful smoke

• Loss of biodiversity

• Habitat loss

All these are reasons for deforestation except

• Infrastructural development

• Agricultural expansion

• All of the above

• Logging

Weathering is the breaking down and wearing away of rock

• True

• False

What is this

• Desertification

• Deforestation

• Bush burning

• Erosion

What is this

• Deforestation

• Desertification

• Erosion

• Over-grazing