The answer would be the last option
They eat the wild life and mess up the food chain, plus they could harm people.
Answer:
i know im late but
Explanation:
ROTATION. If you watch the night sky for a few hours, you will see that the stars appear to rotate about a fixed point in the sky (which happens to be near the pole star, Polaris). This motion is due to the Earth's rotation. ... The Sun, Moon, and planets appear to move across the sky much like the stars.
The correct answer for the question that is being presented above is this one: "salt." <span>One of the most valuable items traded in North Africa long ago was salt. Salt was abundant at that time, and thus North Africa is taking advantage over it.</span>