Chapter 12

Rainforests are called the "lungs of the Earth" because of their role in

• the food web

• the Coiolis effect

• the El Nino current

• the carbon-oxygen cycle

What is the main cause of land use conflict in the Amazon rainforest?

• opposition by the gov to the movement of farmers to the rainforest

• differences among many different groups over how best to use the rainforest

• conflicts between ranchers and farmers over how much land to clear in the rainforest

• arguments among environmental groups over how to preserve biodiversity in the rainforest

which of the following would groups who want sustainable development in the Amazon rainforest most likely support?

• the building of more roads into the rainforest

• the clearing of rainforest to create farms and ranches

• the use of rainforest resources without destroying them

• the harvesting of rainforest trees to create more jobs

Which of these groups is most responsible for deforestation of the rainforest?

• rubber tappers

• native peoples

• logging companies

• environmental groups

Which of these do environmental groups in the Amazon rainforest most want to protect?

• wetlands

• deforestation

• ecotourism

• biodiversity

What can settlers in the Amazon basin do to promote sustainable development of the rainforest?

• clear more land to make larger farms

• encourage more poor farmers to migrate to the rainforest

• use cleared land to raise cattle instead of crops

• plant crops that grow under the rainforest canopy