Question

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

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

Explanation:

A circle graph (also known as a pie chart) is designed to show parts of a whole. Since we want to show the percentage of gases (parts) in Earth's atmosphere (the whole), a circle graph is appropriate. A line graph is for showing trends over time. A data table just lists data. A bar graph is good for comparing quantities, but not as直观 (intuitive) as a circle graph for showing percentages of a whole.

Answer:

a circle graph