What determines the carrying capacity of an ecosystem? a. the number of different types of organisms in an ecosystem b. the amount of available resources c. the square mileage it encompasses d. the ratio of biotic to abiotic factors

Which of the following is not a challenge to instituting sound global environmental policies? a. most changes are inexpensive and easy to implement. b. elected leaders who support unpopular environmental issues often are not re-elected. c. economic considerations outweigh environmental ones in many societies. d. there is no way to enforce international environmental agreements.

After considering options, a student using the problem-solving process should next

Which country in the video has the highest population growth rate?