What is the recommended amount of physical activity for children?a. At least 2 hours per dayb. 4 hours per weekc. At least 1 hour per dayd. No more than 30 minutes per day please select the best answer from the choices provided. Abcd.

Which statement best describes gravity? it is the force that repels only very small objects. it is the force that acts between objects with zero mass. it is the force that sometimes acts only on very large objects. it is the force that acts between any two objects in the universe.

What does the first stage of a multistage rocket do?

Students taking a clep exam can earn between college credits, depending on the college's policies.