Answer:
2/4
Explanation:
because the ratio off the offspring is 2 black pig : 2 white pig. so probability of white pig will be 2/4.
Answer:
Top soil
Explanation:
It keeps all of the others below. we are able to plant and grow things on it.
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.