Answer:
Convection currents describe the rising, spread, and sinking of gas, liquid, or molten material caused by the application of heat. Tremendous heat and pressure within the earth cause the hot magma to flow in convection currents.
The answers of the given sentences above are the following:
1. The pronoun "he" in this sentence is used as a SUBJECT.
2. The pronoun "she" in this sentence is used as a PREDICATE NOMINATIVE.
3. The pronoun "he" in this sentence is used as a PREDICATE NOMINATIVE.
The best possible answer would seem to be C.
Answer: The answer is learning, learning is the process of acquiring knowledge or skills through study, experience and teaching.
Explanation: This is because through learning a person will be able to acquire new skills and learn new things. Learning can be done through studying books, what others has experienced or by paying attention to the teacher while delivering lecture.