4 When deciding on new environmental policies and laws, which term is used to describe the comparison between benefits and costs of human activities?
(1) technology (3) climate change (2) trade-off (4) industrialization

7th grade

What adaptations can prey use to avoid predation

As the human population grows, what happens to our natural-resource requirements? o they increase o they decrease o they do not change. they go in cycles

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.