the answer is B. Atmosphere
B) A chemical change because the nail reacts with water/oxygen to create rust (a type of oxide)
Answer:
An increase in the amount of CO2 well increase the rate of photosynthesis, Carbon dioxide concentration will directly affect the rate of photosynthesis as it is used in the photosynthesis reaction.Increased amount of CO2 will increase the rate of photosynthesis to a certain limit, after which a further increase in its amount will no longer increase the rate any further.
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Answer:
mettaliods
Explanation:
It has the both property of metal and non metal so it is called mettaliod.
