Answer:
The stored energy in the wood is chemical energy, meaning that it can be released by a chemical reaction (burning). It's closely related to those fossil fuel energies, because the chemical energy was formed by photosynthesis, using energy from sunlight as the input.
Explanation:
Answer:
D. The man is one hundred thousand times larger than the amoeba.
Explanation:
one meter is equal to 1,000,000 micrometers.
(1.7m * 1,000,000)/17 = 100,000
Answer:
The heart valves
Explanation:
The heart valves prevent blood from flowing in the wrong direction in the heart. The valves are held in the proper place because of the chordae tendinae.
The Challenger Deep is in the southern end of the Mariana Trench. It is estimated to be 305meters deep.
