This can be done by absolute dating technique. In this, the amount of radioactive material with a known half-life is measured. The measure of the radioactive decay of the elements present in the rock helps in the back calculation of the age of the rock. For older rocks, isotopes of Beryllium, Uranium, Argon etc. are used.
Answer:
Running water
Explanation:
The erosive agent of the Grand Canyon is the Colorado River, a fluvial erosion happens. The fact that the territory is higher, cause more precipitation in the drainage basin of the Colorado River. This greater amount of rainfall gives the stream greater speed, making it more erosive.
Answer:
It prevents their species from going extinct.
The pyloric sphincter valve regulates the exit of digested food from the stomach to the small intestine. Small Intestine--Leads from the stomach.
Because of the process called fertilization or (plant sexual or asexual reproduction)
Good luck with future problems m8
