Give examples of food chains in the tropical rainforest. Include your producer, primary consumer, secondary consumer and decomposer.

How much of the united states’ electric generation comes from coal? a. about 25% b. about 50% c. about 75% d. about 90%

Agricultural practices in the united states nearly led to the extinction of the peregrine falcon during the 1950s and 60s.

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?