B THEY RELEASED CARBON DIOXIDE, WHICH EVOLVING ANIMALS NEEDED.
Answer:
A would be the correct answer I'm sure
Explanation:
Have a nice day
The theory that is being referred to the given situation above is the TWO-FACTOR THEORY. This is also known as <span>Herzberg's motivation-hygiene </span>theory<span> and dual-</span><span>factor theory. This theory shows that their are certain factors that would result in job satisfaction, and there are also factors that would cause the other way around, which is dissatisfaction. This theory applies in the workplace.</span>
They are reactants because they are present before the reaction
A) The stars core shrinks
The star will contract under the weight of gravity.
When it contracts it will heat up and expand to a red giant.
When the star runs out completly of helium it would emit gasses and form a star nebula.
It would then become a white dwarf then into a black dwarf.
