I'd say it should be D. Peat. Hope this helps! =^-^=
Answer:
Gravitational equilibrium helps maintain the environment in the Sun's core that is conducive to nuclear fusion. The Sun's gravitational equilibrium balances the gravity pulling inward and the pressure pushing outward. It keeps the Sun's size, denseness, and hotness stable, thus making nuclear fusion possible.
The energy of the ecosystem can be best described as option C. The amount of energy entering an ecosystem from the Sun is equal to the amount used by organisms plus the amount lost as heat.
Answer:
Yes. That was the question he was trying to answer.
Explanation:
To conduct the experiment investigating the connection between pillows and disease-causing gems, Dr. Philip needs to ask himself whether the pillows that will be used in the research contain germs that contribute to allergies in a family. This question allows Dr. Philip to have the basis to start his research and come to a conclusion about the pillows used in the research. Furthermore, the research points directly to the main point of the story.
Answer: D
They often occur spontaneously, because when energy is released during a chemical reaction it does not usually happen slowly.
