The answer is solar wind.
Answer:
2.
Explanation:
only 2 of them are the causes of air pollution
Answer:
theory of production, in economics, an effort to explain the principles by which a business firm decides how much of each commodity that it sells (its “outputs” or “products”) it will produce, and how much of each kind of labour, raw material, fixed capital good, etc., that it employs
The rock is heavy because the mass changes from 10.0kg to 100.0kg in 3.24 seconds
To help the nervous system and brain develop.