What is a major source of calcium and sodium in oceans? a. air pollutants b. gases from active volcanoes c. minerals dissolved in aquifers d. weathering and erosion of rocks?

Ineed the answer asap. in order to be considered alive, an organism must simultaneously possess the characteristics of homeostasis, heredity, cells, reproduction, and

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.

What best describes the structure of the declaration of independence?