Answer:
hope it helps
Explanation:
Cooler materials move from Earth's mantle to the lithosphere. Cooler materials are highly dense, causing them to sink to the outer core.
Answer:
what's the question i don't understand
Answer:
Cell membranes are semi-permeable, which works like a sieve that determines what enters and leaves the cells.
Explanation:
It is semi-permeable and it allows molecules to diffuse inside.
<em>Feel free to mark it as brainliest :P</em>
