Answer:
I believe the answer is B. X-spongy;Y-marrow
Answer:
D. .................................
A meteroid is the only thing small enough to enter the atmosphere and not destroy the Earth so C
Answer:
true
Explanation:
Sediment is deposited in flat, horizontal layers with the oldest layers on the bottom and the younger layers laying on and over the older layers.
False; Melanin absorbs and dissipates the harmful UV rays that can damage the DNA of your skin cells. Keratin is a fibrous protein that helps to protect skin from abrasion.