I am new I am 7 my big brother told me to get this

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

Summarize possible ways in which phases of matter could combine to form a solution.

How many atoms are there in 5.70 mol of mg