Answer:
B. Direct and Indirect
Explanation:
Water can be polluted both directly and indirectly. Direct pollution would like from a factory while indirect would be contaminated water that entered the water supply through evaporation and rain or runoffs.
Answer:
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Wastes from the cells are eliminated by your respiratory system, your excretory system, and your skin. Your nervous system controls all these activities with electrical impulses. If any system in your body isn't working properly, other systems are affected. ... Without electricity, the heating system would not work
Explanation:
D. because the medical system doesn't care about how much they get you to spend on prescription drugs and als o the advances in the medical field have gone up.
The basic functional unit of the kidney is the nephron.
A. nephron.
