Answer:
has just come
Explanation:
it is singular so not have and will is future but here we need to use "has"
I hope im right
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1)carbondioxide
2)helium
3)motion?
4)burn more rapidly
5)co2 and o2
6)a
7)a
8)b
9a
Respiration is the movement of o2 from outside the body to inside the body
Photosynthesis is the process plants use to make food and energy using co2 and light energy
A Nobal gas is a gas in group 8 and have a full outer shell making them unreactive
Because we need air to live if we didn’t have air we wouldn’t be able to breath nor would plants
Wind
Photosynthesis?
Combustion
Nitrogen oxygen and carbon dioxide
