Answer:
B.
Explanation:
Which of the following describes the outer core?
A. The solid, rocky layer on the outside
B. A layer of liquid metal that spins
C. A dense layer of solid metal
D. Hot, partially melted rock that flows
Because the outer core is the third layer of the Earth. It is the only liquid layer, of metals irons and nickel Also its responsible for Earths magnetic field as earth spins on its Axis the substances move also move around during that
Answer:NH2 side group and COOH side group.
Explanation:
Answer:
Hydrogen is used by plants which combine it with carbon during the photosynthesis process and release oxygen into the atmosphere which is used by all living beings.
Answer:
D
Explanation:
Pasteur blocked the flask from open air to prove that cells couldn't spontaneously come into life, but rather they must come from preexisting cells.