A positive effect of human interaction with the environment is : The large population increase

Using trees and vegetation for firewood

Herds if animals only grazing in the same place

The Panama Canal allowing for effective travel

Which of the following best describes the economy of africa?

All of the following statements about the biosphere are true except: a. light and heat from the sun do not affect the biosphere. b. the biosphere gets resources from earth's crust, hydrosphere and atmosphere. c. like "biology", the name for the biosphere comes from the greek word for life. d. the biosphere includes all living organisms on earth's surface.

The ratio of the measures of the three angles in a triangle is 14: 15: 11 find the measures of the angles