Which statement is true about both groundwater and surface water? A. Both the groundwater and the surface water are purified as they soak through the soil layers
B. The water levels of both the groundwater and the surface water stay stable
C. The groundwater and the surface water together form a drainage basin
D. Rainwater forms both the groundwater and the surface water

How do tides affect the organisms living in intertidal zones? a. no organisms live in intertidal zones due to the tumultuous environment. b. the mechanical forces of the waves keeps the organisms clean. c. only plants live in intertidal zones because the animals float away with the waves and never return. d. the mechanical forces of the waves can dislodge the organisms from their habitat.

How do living things obtain phosphorus

Which term describes a normal value for something in the body? a.homeostasis b.set point c.feedback loop d.integration center