Answer:
The correct answer, the right match is number 4
Step-by-step explanation:
1. it is wrong, because that is the definition of asthenosphere.
2. It is wrong, because that is the definition of core.
3. It is wrong, because that is the definition of crust.
4. It is the correct answer. The right match: mantlethick, hot layer of semi-solid rock surrounding the earth's core.
5. It is wrong, because that is the definition of permafrost.