The difference in the concentration of a substance across a space is called a concentration [ equilibrium / gradient ]. ... If there is a concentration gradient, substances will move from an area of high concentration to an area of [ equal / low ] concentration
The injection would be to keep him from getting infections
Answer:
c. decaying plant and animal remains
For any terrestrial planet in the solar system, the core would be the densest layer, and the crust would be the least dense layer.
