Water provides the for many plants and animals.

Match term definition ellipse a) diagonal cross section of a cylinder circle b) diagonal cross section through the widest part of a sphere sphere c) cross section parallel to the base of a cone great circle d) shape created when a semi-circle is rotated around the y-axis triangle e) perpendicular cross section of a cone

1. list three scientific reasons cockroaches may fly.

What are the first three quantum numbers for the electrons located in subshell 2s?