Question

1. what happens in the southern hemisphere when the autumnal equinox occurs in the northern hemisphere?

a. the vernal equinox
b. the summer solstice
c. the winter solstice
d. the autumnal equinox

1. starting in january, the northern hemisphere progresses from winter to spring, summer, and fall. what is the sequence in the southern hemisphere starting in january?

a. winter, spring, summer, fall
b. winter, fall, summer, spring
c. summer, spring, winter, fall
d. summer, fall, winter, spring

1. in the northern hemisphere, the sun is highest in the sky during the _.

a. vernal equinox
b. summer solstice
c. autumnal equinox
d. winter solstice

1. at the start of which season is the sun lowest in the sky?

a. spring
b. fall
c. winter
d. summer

1. about how long does it take for earth to revolve once around the sun?

a. 7 days
b. 14 days
c. 29 days
d. 365 days

Explanation:

9.

When the autumnal equinox occurs in the Northern Hemisphere, it is the vernal equinox in the Southern Hemisphere. The equinoxes and solstices are opposite in the two hemispheres.

Since the seasons are opposite in the Northern and Southern Hemispheres. If the Northern Hemisphere starts in January (winter) and goes winter - spring - summer - fall, the Southern Hemisphere (which has opposite seasons) in January (which is summer in the Southern Hemisphere) will have summer - fall - winter - spring.

During the summer solstice in the Northern Hemisphere, the sun is at its highest point in the sky. This is because of the tilt of the Earth's axis.

Answer:

a. the vernal equinox

10.