During which step of the water cycle does water combine with pollutants on Earth's surface?
Precipitation
Transpiration
Evaporation
Runoff
Water is taken in
by animals
Plants take up water
from the ground
Percolation
A. Transpiration
B. Percolation
C. Runoff
D. Precipitation

Name one similarity and one difference between the morphology of a brachiopod and a bivalve

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.

Study the diagram of a cell. which structure is found only in plant cells and functions in the process of photosynthesis? w x y z