I think it is a petrified fossil but you didn't give any choices
Convection is the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in the transfer of heat.
I think the correct answer is the second option. The best isotope to be used in dating metamorphic rocks would be potassium-40. It is the most common and is widely appliclable since most of metamorphic rocks have potassium in it. The isotope system used is potassium-argon.
Answer:
Prophase
Explanation:
During the prophase, chromatin condense to form chromosomes that are visible.
