i think its theory but im not to sure
Answer:
A-Saturn
B-Mars
C-Venus
D-Uranus
Explanation:
A-Only Saturn is the sixth planet
B-Mars is commonly known as the red planet
C-Only Venus has a day longer than its year
D-Only Uranus has 27 known moons
8.908 G/cm^3 is the density of a nickel
A nuclear reaction changes the number of protons and or neutrons in an atom.
<h3>What do nuclear reactions change in the atom?</h3>
A nuclear reaction is a type of reaction that results in the change of the nucleus of an atom. We know that a nucleus of an atom is made up of protons and neutrons.
So we can conclude that a nuclear reaction changes the number of protons and or neutrons in an atom.
Learn more about reaction here: brainly.com/question/26018275
#SPJ4