instruction:
In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.
question:
Question: Which crust lies deep inside the ocean? Answer: oldest
answer:
Oldest crust lies deep inside the ocean.


question:
Question: What holds ionic and covalent compounds together? Answer: electrostatic attractions
answer:
Electrostatic attractions holds ionic and covalent compounds together.


question:
Question: When changes in the genes of a species result in a new species, the process is called what? Answer: biological evolution
answer:

When changes in the genes of a species result in a new species, the process is called biological evolution.