Element
An element is a pure substance that cannot be broken down into other substances, an element is made up of only one type of atom.
Hope this helps :)
Answer:
A reaction that joins the nuclei of two atoms into one
Explanation:
Think of the words "nuclear fusion".
Nuclear = "relating to a nucleus"
Fusion = "joining"
So, nuclear fusion is the joining of two nuclei into one.
A and B are wrong, because chemical reactions involve electrons.
D is wrong, because the splitting of a nucleus is fission.
Answer:
SADSFADVADVADADVADVADVADVADVADVADVADADADSVADVADADSVADVADAVVVVVVVVVVVVVVVVVVVVVVVVVVVV
Explanation:
Answer:
temparate deciduous
grasslands
tropical rain forest
taiga
tundra
grasslands
tropical rain forest
temperate deciduous rainforest
Explanation:
the main human activity is air pollution