C. The inner core is known to be made mostly of nickel and iron. However, since there is an outer core (which is the original one that's made out of nickel and iron), your answer might be D. But if you put it the 'core' in general, the right answer should be C.
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.
Answer:
I think that the answer is G
The answer would be depressions. Hachure lines, or lines with teeth, describe depressions. These lines are concentric lines which indicate a closed depression. These lines show orientation of slope and they provide an idea to the steepness of that area.
