Amanda is doing a report for her Earth Science class about the four seasons. Which of the following would be an effective scientific model to incorporate in her project?

a.
A calendar indicating the first days of autumn, winter, spring, and summer
b.
Four earth models, each with a different tilt to represent the earth’s position relative to the sun, lined up in order of season
c.
A poster board with pictures of weather characteristic of the four seasons
d.
A bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer