<u>Answer:</u>
All of the above mentioned options can be used by scientists to date the sediment layer they are found in.
<u>Explanation:</u>
- Rock fossils, animal fossils, etc.found in the sediment layer can be used to determine the age of the sediment based on the period of the existence of that animal or the period of formation of the rock.
- Tree rings clearly exhibit the age of the tree. Hence, a sediment layer with the evidence of tree rings can tell the age of the sediment layer.
- An amalgamation of the data obtained from the animal growth rings and the period of existence of that specific animal species can be used to calculate the age of the sediment.
- The intensity of radioactivity left in the isotopes clarifies how old the isotope is.
- The age of mineral elements can be determined exactly with the help of processes like Potassium-Argon dating, Uranium-Lead dating, etc.
- Thus it would be easy to determine the age of the sediment layer containing mineral elements.
The Grand Canyon is about 5-6 million years old, or was formed about 5-6 million years ago
Answer:
2 is in southwestern China.
Explanation:
The highlands of East Asia are found, in particular, in the southwest of China and present a strong temperature variation due to the variability of the altitude and the latitude of this region, where the places with the highest altitude have a colder climate, as well as the places that have more northern latitude.
D. Darryl gives Mike a collectible football jersey.
Commodity money is a form of currency that's value exists within and of itself. A commodity is used to trade for the sum of money at which it has perceived value. If a collectible football jersey has been appraised at $250, then as a commodity, the jersey may be used to trade for goods or services of the same value.
