Please help The acceleration of free fall near the surface of the Earth is constant Do you agree with this statement?

Thank you

How do hydroponic plants differ from nonhydroponic plants? a.) hydroponic plants can grow in a dryer soil. nonhydroponic plants grow in moist soil. b.) hydroponic plants grow on other plants and are known as air plants. nonhydroponic plants do not grow on other plants. c.) hydroponic plants can only grow in rain forests. nonhydroponic plants cannot grow in rain forests. d.) hydroponic plants are grown without soil. nonhydroponic plants are grown in soil.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.

The direction of the current in an alternating current circuit remains constant. is direct. changes repeatedly. changes randomly.