Answer:asteroid,planet,star,nebula,galaxy, and universe
Explanation:I’m not actually sure im just smart
I believe the answer is D) reactivity. Hope this helps. (ノ◕ヮ◕)ノ*:・゚✧
Hydrogen atoms are compressed
together by the enormous gravitational force
of the sun, causing them to fuse int a helium atom (which is heavier than
hydrogen), subatomic particles and enormous
release of atomic energy. The attached
picture shows the sequence of the main reaction
at the core of the sun.
A biogeochemical cycle is a pathway by which a chemical substance moves through both biotic and abiotic compartments of earth