Answer:
4600-4500 million years ago, the Earth formed and its crust cooled to become solid. 4500-4400 million years ago, the oldest known thing to have formed on Earth, zircon, formed along with solid crust and oceans. 4200-4100 million years ago, the close of the Hadean Period (there are no surviving rocks).
Answer:
probably the heart because you can live with just a brain stim and no brain but you would die without a heart
Answer:
B
Explanation:
The Golgi Body is actually responsible for this process. Hope this helps!
Asexual reproduction limits the spread of harmful characteristics because the offspring is only inheriting from one parent.
the correct answer is c. roks and minerals are used to build the dam
