<span>a. Volunteering at a local homeless shelter
Helping the homeless people in the community is already an activity under "community involvement."
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Answer: scientific method
Explanation: Scientific method refers to means of looking into phenomena, acquire new knowledge, correct misconceptions and fallacies, and probe theories. Scientific method is a procedure of investigation with defined steps that include experiments and careful observation. The most important part of scientific method is the testing of hypotheses. A hypothesis is a prescribed explanation for an event, which can be tested. Hypotheses, are generally produced within the context of a scientific theory.
According to a website, it describes how Earth's outer shell is divided into several plates that "glide over the mantle (which is the rocky inner layer)"
So, basically, it's talking about how the Earth's crust is structured.
Definition: a theory that is describing (or explaining) the structure of Earth's crust
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