all properties of matter have physical and chemical process'. Be more specific? Sorry I can't help more.
CO2 is a normal waste that normally diffuse across placenta from embryo to the mother.
Answer:
They will not get too much heat.
Explanation: In the desert, there are many times when it is very hot, sometimes too hot for the plants to survive. In nightime, it cools down a lot.
Answer:
A. Lava destroys homes and farmland.
D. Ash and dust fill the air and reduce sunlight.
E. Organisms and populations on the wildlife preserve die.
Answer: D. Keratin
Explanation: Keratinocytes (pronounced: ker-uh-TIH-no-sites) make keratin, a type of protein that's a basic component of hair, skin, and nails. Keratin in the skin's outer layer helps create a protective barrier.