Brenda studies frequently for her class in hopes of earning an a in the class. she is trying to keep her grade point average as high as possible. she is motivated by:

Brenda is motivated by extrinsic motivation, meaning she is motivated to study because she does not want to get a bad grade instead of being motivated by her enjoyment of the subject.
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Don't pollution air circulation. wasting pollutionclean in your surroundings

Expansion of the stomach