Ecosystems

What is an ecosystem?

• A community of plants and animals sharing an environment with non-living things.

• The flow of energy between living organisms.

• A global biome such as the tropical rainforest.

• The pathways through which nutrients are constantly recycled.

What is the tropical rainforest?

• The tropical rainforest is a forest occurring in tropical areas of low rainfall.

• The tropical rainforest is a forest occurring in tropical areas of heavy rainfall.

• The tropical rainforest is a forest occurring along the tropics of Cancer and Capricorn occurring in areas of high rainfall.

• The tropical rainforest is a forest occurring along the tropics of Cancer and Capricorn occurring in areas of low rainfall.

Identify the rainforest’s main layers.

• Plant layer, under canopy, canopy and emergent.

• Shrub layer, under shrub layer, canopy and emergent.

• Shrub layer, under canopy, canopy and emergent.

• Ground layer, under canopy, crown layer and emergent.

Look at figure 1. Where is the rate of deforestation decreasing?

• Mexico, Laos and Cambodia

• Indonesia, Peru and Brazil

• Indonesia, Peru and Madagascar

• Cameroon, Nicaragua and Senegal

Which of the following is not a cause of deforestation in the tropical rainforest?

• Afforestation

• Farming

• Road Building

• Cattle ranching

Which of the following is not a type of agriculture affecting tropical rainforests?

• Cattle ranching

• Hydroponics

• Palm oil production

True or false? Deforestation leads to soil erosion.

• True

• False

True or false? Deforestation leads to soil erosion.

• True

• False

Which of the following is not an example of a local impact of deforestation in the tropical rainforest?

• Elimination of Indian groups and their way of life.

• Soil erosion

• An increase in CO2 levels in the atmosphere.

Which of the following are global impacts of rainforest deforestation?

• Global climate change

• Loss of biodiversity

• River pollution

• Local climate change