The answer is X Ray
Hope it helps
Letter C would be the correct answer
Answer:
This question appear incomplete
Explanation:
This question appear incomplete. However, fuel is formed through a natural phenomenon involving the conversion of large amount dead and decayed organisms (usually algae and zooplanktons) to combustible fuel through exposure to relatively high temperature and pressure (over millions of years) in the earth's crust. Thus, since this involves a sort of absorption of heat energy (from the earth's crust), it can be referred to be an endothermic reaction.
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Answer:
one-half
Explanation:
cuz for a first order reaction is a half life independent of concentration and constant over time
