Variations in air pressure from place to place are the principal cause of wind.
The economic health of Egypt will be affected by its population as (B) it will need to grow its economy faster than its population. As the population grows, with increasing birth rates, the economy needs to grow bigger in order to support the food, work and health needs of the populous.
<span>C. the rate of primary productivity
</span>Since primary productivity is measured in three ways (A<span>mount of CO2 used,</span>
<span>rate of sugar formation and </span><span>oxygen production) these don't control the climate, but can change it. Unlike the other options.</span>
Answer:
Urban areas provide more economic opportunities than rural areas
Explanation:
