1. which of the following is the most effective way to preserve biodiversity?
a. captive breeding b. habitat destruction c. habitat preservation *** d. habitat fragmentation 2. which of the following describes the use of a renewable form of energy?
a. using natural gas to heat a house b. using a windmill to grind grain c. using petroleum to run a car d. using coal to generate electricity?

Abeaker of water was heated and then placed on a bench in the laboratory. the water cooled until it was the same temperature as the air in the laboratory. which of these explains the mechanism by which the water cooled? a. heat energy was transferred from the water to the air. b. water molecules from the water formed warm water currents. c. the water molecules absorbed energy from the molecules in the air. d. the water released radiation until it contained no heat energy.