What was sir isaac doing when an apple fell on his head which would eventually lead to the theory of gravity?

Secondary school falls between a . kindergarten & elementary b. elementary school & post secondary school c. post secondary school & higher education d. middle school & high school

Which of the following is a unit of volume measure?                 a.  bunch      b.  tablespoon      c.  gram      d.  dozen

Recycled water is best used for a) drinking b) bathing c) lawns d) dishes e) laundry