Deep inside the core of the sun, protons can collide into eachother with enough speed that they stick together to form a helium nucleus and generate a big amount of energy at the same time.
Answer:
Because the vaccine is an antigen from living, weakened or killed microorganisms that activate the immune system and the body produces protective antibodies.
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Answer:
Cell wall, Vacule, Plastids
Explanation:
Groundwater is the water found underground in the cracks and spaces in soil, sand, & rock.
