Tropical Rainforests Revision

Which of the following describes rainforests?

• Constant temperature and high rainfall

• Wet and dry seasons

• High and low temperatures with high rainfall

What type of rainfall is commonly found in tropical rainforests?

• Relief

• Convectional

• Frontal

Which word describes the rainforest nutrient cycle?

• Slow

• Moderate

• Rapid

Why are rainforests cleared?

• For agriculture

• For housing and roads

• For agriculture, housing and roads

What is one positive impact of deforestation in the Amazon?

• Improved transportation

• Increased soil erosion

• Decreased populations of Amazon indians

What minerals can be mined in the Amazon rainforest?

• Ebony and mahogany

• Bauxite and iron ore

• Palm oil and beef

Why do new roads cause problems in the Amazon rainforest?

• People living nearby find them noisy

• They are expensive to build

• They divide up parts of the forest

What is slash and burn agriculture?

• When trees are cut down and burnt to provide ash

• When crops are burnt to give them extra flavour

• When trees are burnt to encourage fresh growth

What is agro-forestry?

• Growing trees

• Growing crops

• Growing trees and crops at the same time

The upper parts of most of the trees are found at 20 - 40 metres (65 - 130 feet). What is this layer of the forest called?

• Shrub layer

• Canopy

• Under-canopy