Jenna takes part in health-enhancing activities fewer than 30 minutes a day. She completes many basic daily activities. How can Jenna's activity level be classified? Please Help

highly active

sedentary

physically active

moderately active

What do the atoms of elements in the same group have in common? a. they have the same atomic numbers. b. they have the same average atomic masses. c. they have the same number of electron shells. d. they have the same number of electrons in their outermost shells.