Answer:
3, 2, 1, 4. (the second answer)
Explanation:
Answer:
Redbeds indicate the presence o iron in the environment. Red beds are red sedimentary rocks and the color is due to the presence of the ferric oxides. Ferric oxides occur as a coating on the sedimentary grains. In between the shale and cherts, iron-rich sediments can be found.
Explanation:
The Yucatan Peninsula and the Baja California Peninsula are two peninsulas found in Mexico.
Answer:
only about 20% - 35%
Explanation:
We do not know that much about the earth itself, and people just recently started discovering the earth for what it truly is. Though, we have been recording earthquakes and tsunamis since the early 19th century.
This makes up anywhere from 20% to 35%. It is hard to know the exact percentage for sure.
