The percentage of earths water is contained in the ocean is 96.5%
Answer:

Explanation:
Given

Required:
Determine its pressure at 16km
Let the pressure at 16km be x.
So, the rate at 16km is:

Equate both rates

Multiply both sides by 16




Answer:
Redbeds indicate the presence o iron in the environment. Red beds are red sedimentary rocks and the color is due to the presence of the ferric oxides. Ferric oxides occur as a coating on the sedimentary grains. In between the shale and cherts, iron-rich sediments can be found.
Explanation:
Fossil Fuels can cause the greatest enviromental problems when collected.
I'm pretty sure it's Madagascar, because Alergia and Chad are both deserts in Sahara, and Madagascar isn't even on Africa its off the southeast of Africa so I hope this helped!