Earth's Movements and Their Effects

What is the primary cause of day and night on Earth?

• The distance of the Earth from the Sun

• The Earth's rotation on its axis

• The tilt of the Earth's axis

• The Earth's revolution around the Sun

How long does it take for the Earth to complete one full revolution around the Sun?

• 365 and one-fourth days

• 366 days

• 30 days

• 24 hours

During which event does the Northern Hemisphere experience its longest daylight period?

• Winter Solstice

• Summer Solstice

• Spring Equinox

• Autumnal Equinox

What is the significance of an equinox?

• It marks the longest day of the year

• It marks the shortest day of the year

• Day and night are of equal length

• It occurs every four years

What is a leap year?

• A year with 365 days

• A year with 366 days

• A year with 364 days

• A year with 367 days