Answer:
Index fossils, intrustions and cross-cutting relationships.
Explanation:
The correct list of three different geologic features that help scientists determine the relative ages of rocks by their position is "index fossils, intrusions, and cross-cutting relationships".
"Monsoon climate is good for rice farming", "Weak monsoon seasons lower agricultural output" and "Monsoons can cause devastating landslides and floods" are the statements <span>about monsoons that are correct. The correct options among all the options that are given in the question are options "A", "C" and "D".</span>
It has gone through four half-lives of carbon-14 (5730 years<span> x 4 = </span>22920 years<span>)
It is 22920 years old.
Hope this helps!</span>