The video explains the revolution of Earth around the Sun, detailing how this movement affects the seasons, solstices, and equinoxes. It covers the concept of a leap year, explaining how the extra six hours each year accumulate to form an additional day every four years. The video also describes how the Earth's tilt and position relative to the Sun result in varying day lengths and seasons across different hemispheres.

What is the duration of one complete revolution of the Earth around the Sun?

• 365 days

• 365 days and 6 hours

• 366 days

• 364 days

Why do we have a leap year every four years?

• To adjust the calendar for the Earth's rotation

• To account for the extra 6 hours each year

• To align with the lunar calendar

• To celebrate an extra day in February

What causes the different seasons on Earth?

• The speed of Earth's rotation

• The gravitational pull of the Moon

• The distance of Earth from the Sun

• The tilt of Earth's axis and its position relative to the Sun

On which date does the summer solstice occur?

• December 21

• June 21

• September 23

• March 21

During the summer solstice, which hemisphere experiences the longest day?

• Neither Hemisphere

• Northern Hemisphere

• Southern Hemisphere

• Both Hemispheres

What happens in the Southern Hemisphere during the summer solstice in the Northern Hemisphere?

• It experiences winter

• It experiences summer

• It experiences autumn

• It experiences spring

What is the position of the Earth during the winter solstice?

• The Northern Hemisphere is tilted towards the Sun

• The Southern Hemisphere is tilted towards the Sun

• The Earth is closest to the Sun

• The Earth is farthest from the Sun

What is unique about the equinoxes?

• The Earth is closest to the Sun

• The days are longest

• The nights are longest

• Day and night are nearly equal

On which dates do the equinoxes occur?

• June 21 and December 21

• March 21 and September 23

• January 1 and July 1

• April 15 and October 15

During the equinoxes, where do the sun's rays fall directly?

• Equator

• Arctic Circle

• Tropic of Capricorn

• Tropic of Cancer