Question

1. which type of graph is best to show the percentage of gases in earths atmosphere?

a circle graph
a data table
a bar graph
a line graph

Explanation:

A circle graph (pie chart) is used to show parts of a whole. The percentage of gases in Earth's atmosphere represents parts (each gas's percentage) of a whole (the entire atmosphere). A data table just lists data. A bar graph is good for comparing discrete values. A line graph is for showing trends over time.

Answer:

a circle graph