Answer: We don't make our plastics out of Hemp because, Hemp plastics and other hemp products can reduce the greenhouse effect by 'locking in' carbon. As it grows, hemp absorbs carbon dioxide (CO2), which is the basic element of all plants and animals, from the atmosphere and converts this pollutant into oxygen, which it then releases.
Explanation:
The correct answer is D: model the behavior whenever appropriate.
Gravity and Heat
"...star formation begins when part of the interstellar medium--one of the cold, dark clouds... starts to collapse under its own weight. The cloud fragment heats up as it shrinks, and eventually its center becomes hot enough for nuclear burning to begin. At that point, the contraction stops, and a star is born."
