Answer:
I agree I think it is 90 :)
Explanation:
The movement of the Earth plate made Canada have same fossils or other materials from other countries. It changed the ocean direction, and climate.
Fact: The plate moves one centimeter each year.
It's a type of fossil specifically called a 'Cast.'
The Amazon and the Mississippi river similarities is Both played a role in the development of civilization. Both are key players in the surrounding ecosystems.<span>
Hope this answer your question! :)</span>
Answer:
3 half live have passed.
Explanation:
After 1 half-life , 500 g of the parent isotope will remain. After 2 half-lives , 250 g of the parent isotope will remain. After 3 half-lives , 125 g of the parent isotope will remain.
