Answer:
Plants
Explanation:
Plants, part of the biosphere, grow in the soil, which is part of the geosphere
hope this helped :)
18. c
19. A
20. decomposition reaction
21. 4
22. 0.04%
Answer:
See attachment.
Explanation:
Elements that are in the same group will definitely possess similar characteristics because they tend to have the same valence electron which determines their reactivity.
On a periodic table, elements in the same group can be found arranged on the same column in the periodic table.
Therefore the two elements that have similar characteristics are those two elements you can see on the same column in group 2. See the two elements indicated in the attachment below.
Answer: The electron arrangement for gallium is:
Ar 3d10 4s2 4p1