What happens in a photic part of a body of water? A. The water is stagnant.
B. Plants grow using photosynthesis.
O C. No plants can grow.
O D. Water flows in and out quickly.

How many species of living things are alive on earth today? more than 1,000,000 none of these answers are correct 100-500 1,000 –500,000 o 500,000 -1,000,000

Which of the following can be reduced by the use of renewable energy sources? a. social costs b. economic costs c. environmental costs d. all of the above select the best answer from the choices provided a b c d

Number and variety of living organisms includes genetic, species, and ecological types