Why does nuclear fusion occur in stars but not on Earth? A.
There are no elements on Earth that can undergo fusion.
B.
Too many free neutrons are present on Earth.
КОс.
Fusion reactions require a lot of heat and pressure.
D.
Elements capable of undergoing fusion can't be enriched on Earth.

Need asap question 1 minerals are organic compounds. true false question 2 what vitamin can be found in foods like oranges, grapefruits, and broccoli? a. vitamin a b. vitamin k c.vitamin c d. vitamin d question 3 what are minerals? a. chemical elements that are needed for body processes. b. organic compounds that the body needs in small amounts to function properly. c. small molecules used to build proteins. d. an organic compound that is insoluble in water and includes fats. question 4 how many types of vitamins does the human body need? a. 15 b. 11 c. 13 d. 17 question 5 vitamins are a good source of energy. true false