8.7A

Which diagram shows the relative position of Earth's axis at the beginning of summer in Texas?

• Diagram A

• Diagram B

• Diagram C

• Diagram D

Which of these statements best compares the locations of point A and point B?

• Point A is experiencing day while point B is experiencing night.

• Point A is experiencing night while point B is experiencing day.

• Point A is experiencing summer while point B is experiencing winter.

• Point A is experiencing winter while point B is experiencing summer.

The model shows Earth in four different positions in its orbit around the sun. Which statement correctly explains which position of Earth represents summer in the United States?

• Position 1, because the Western Hemisphere is facing the sun

• Position 2, because the Northern Hemisphere tilts toward the sun

• Position 3, because Earth is at its closest point to the sun in its orbit

• Position 4, because Earth is traveling at its fastest rate in its orbit

Why does autumn start in different months of the year in North America and South America?

• Earth's orbit around the sun is not a perfect circle.

• North America has a larger landmass than South America.

• The moon has a greater pull on South America than on North America.

• Earth's axis has a 23.5° tilt.