2.imagine you were investigating the cause of a mysterious disease. which of the following would not be important to determine? a. the food that the diseased people recently ate. b. who the diseased people were in contact with recently. c. where the diseased people had recently been. d. how wealthy the diseased people were.

Which of the following choices is not an effective solution to the energy waste related to inefficient lighting? a. using low-pressure sodium lighting sources b. pointing lights on billboards and street signs upward c. placing light sources on time controls d. shielding light to direct it downward

What are charcteristics of lithosphere?

Which best explains how a heat pump can heat a room? cold air from the house is moved through pipes, where it absorbs thermal energy. warm air from outside is pushed into the house to replace the cold air. combustion warms the air when chemical energy is transferred to thermal energy. fuel is used to move a piston, which pushes warm air into the house.