37. What is the result of earth's tilt?

a. Seasons
b. Climate
c. Weather
d. Day and Night

38. What is the shape od the earth's orbit around the sun?

a. Circular
b. No particular shape
c. Elliptical (slightly oval)
d. Square to rectangle

39. What are the names of the days when day and night are of equal duration?

a. Summer Solstice and Winter Solstice
b. Summer Equinox and Winter Equinox
c. Vernal Solstice and Autumnal Solstice
d. Vernal Equinox and Autumnal Equinox

40. It is the reason that causes the length of daylight to change.

a. It depends on the shape of the planet.
b. It is based on how far the sun rays reach.
c. It is based on the tilt of the sun beside the planet.
d. It depends on the tilt of the earth as it moves around the sun.​