Alien pest species, Harmful pest species, <span>harmful non-indigenous species
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He can repeat his experiment multiple times, and ask a friend to repeat it as well to see if they get the same answer.
Answer:
nitrogen
Explanation:
it has 14.0067 and it helps with the reaction of the other element
Answer:
Directly
Explanation:

If V increases, then T must also increase to keep the same ratio.
If V decreases, then T must also decrease to keep the same ratio.
V and T are directly proportional, because a change in one always causes a change in the other and the changes are in the same ratio. The constant k is called the proportionality constant.