The atmosphere!!!!
The sky that moves water everywhere over the Earth.
Water at the Earth's surface evaporates into water vapor which rises up into the sky to become part of a cloud which will float off with the winds, eventually releasing water back to Earth as precipitation.
The roots of trees helps hold the soil together, so it's not a
Forests do in fact, yield useful products, fruits, lumber, animals to hunt, medicine tree, so it's not b
Forests do provide a habitat for many animals, so it's not c
SO the answer must be D. For reference, soil salinization is the process in which salt content increases in the soil.
The continent name is Africa
Answer: if I'm reading it right, because it's a bit blurry, a is 900 b is 900 c is 1500 and d is 1000