Answer:
Mesosphere
Explanation:
The mesosphere starts at 31 miles (50 km) and extends to 53 miles (85 km) high. The top of the mesosphere, called the mesopause, is the coldest part of Earth's atmosphere, with temperatures averaging about minus 130 degrees F (minus 90 C).
Wind erosion is the main cause. And since it is the desert that wind can pick up tiny sand rock particles that slowly grind against the rock. Over time the erosion will give a jagged rock the smooth features as if it had been submerged in a river for the roughly same period of time.
Answer:
Benefits of Dams
Economic benefits of dams are:
1. Electrical Generation.
2. Navigation.
Environmental benefits of dams are:
1. Reduces the consumption of fossil fuels and the green houses gases.
2. It provides water for irrigation.
3. It can prevent uncontrolled flooding.
4. Debris control
Social benefits of dams are:
1. creates recreational activities like boating and fishing.
Explanation:
The correct answer is rain forests increase greenhouse gases. I know for sure it's not the first or third answer. Rain forests are the habitats for many animal and plants but I'm pretty sure its over 50% not 30%.
