Answer:
global warming or human impact on the earth.
Explanation:
humans impact the earth a lot. such as how much trash we make or gas effecting the ozone layer and polluting our air! <3
Answer:
1) the boy has messy white hair.
2) I'm not quite sure on this one so don't take my word for it but I believe the answer is. He tried to help but he couldn't move as in paralyzed by some sort of fear.
In the first sentence, the "he" is a nominative as it is a subject.
In the second sentence it is an object as the form "me" is actually "I", but "i" is a nominative form and "me" is an objective form.
In the third sentence "Us" is also used in objective form as "us" is an object of an action by "my sister".