A recent study of college students from low-SES backgrounds and high-SES backgrounds conducted by VanKim and Laska showed that college students from low-SES backgrounds than their higher-SES counterparts.

Explanation:

A recent study of college students from low-SES backgrounds and high-SES backgrounds conducted by VanKim and Laska showed that college students from low-SES backgrounds ate more fast food and fewer fruits and vegetables than their higher-SES counterparts. According to them "Higher nutritional knowledge, which is associated with a greater SES, is associated with engagement in more healthful weight-loss methods".

Engaged in lower levels of physical activity

Explanation:

A recent study of college students from low-SES backgrounds and high-SES backgrounds conducted by VanKim and Laska showed that college students from low-SES backgrounds ENGAGED IN LOWER LEVELS OF PHYSICAL ACTIVITY than their higher-SES counterparts.

the declaration states, “we hold these truths to be self-evident, that all men are created equal, that they are endowed by their creator with certain unalienable rights, that among these are life, liberty, and the pursuit of happiness….”

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