What are four health benefits of being physically active and how can physical activity increase your chances of living longer?

Getting regular exercise can help you: Have a healthier heart. Regular physical activity raises healthy HDL cholesterol levels and reduces unhealthy LDL cholesterol and triglycerides. It also lowers blood pressure, burns body fat, and lowers blood sugar levels — all of which benefit heart health.

the answer is:

when will (v) the books (n) be (v) due?

nouns refer to people (other than pronouns), places and things, whereas verbs describe actions and are usually part of the predicate of a sentence. finally, pronouns can work as nouns and identify the participants in speech.

in the example sentence, "will" is a verb part or auxiliary verb, "be" is an infinitive verb and "books" is a plural noun.