The video explains the Earth's revolution and its impact on seasons, focusing on solstices and equinoxes. It describes how the Earth's tilt and position relative to the sun cause different seasons in the northern and southern hemispheres. The summer solstice occurs on June 21st, with the sun over the Tropic of Cancer, while the winter solstice is on December 22nd, with the sun over the Tropic of Capricorn. Equinoxes occur when the sun is directly over the equator, leading to spring and autumn seasons. The video concludes with a diagram illustrating these concepts.

What are the two main phenomena discussed in relation to Earth's seasons?

• Solstices and Equinoxes

• Day and Night

• Tides and Waves

• Eclipses and Phases

On which date does the summer solstice occur?

• 21st March

• 22nd December

• 21st June

• 23rd September

During the summer solstice, which hemisphere experiences winter?

• Southern Hemisphere

• Neither Hemisphere

• Northern Hemisphere

• Both Hemispheres

On which date does the winter solstice occur?

• 22nd December

• 23rd September

• 21st June

• 21st March

During the winter solstice, which hemisphere is tilted towards the sun?

• Southern Hemisphere

• Neither Hemisphere

• Northern Hemisphere

• Both Hemispheres

What is the position of the sun during the spring equinox?

• At the Tropic of Cancer

• At the Tropic of Capricorn

• At the North Pole

• Vertically at the Equator

Which season occurs in the northern hemisphere during the spring equinox?

• Spring

• Winter

• Summer

• Autumn

On which date does the autumn equinox occur?

• 22nd December

• 21st June

• 21st March

• 23rd September

During the autumn equinox, which season is experienced in the southern hemisphere?

• Summer

• Winter

• Spring

• Autumn

What is the main reason for the occurrence of the four seasons on Earth?

• Earth's distance from the sun

• Earth's tilt and revolution around the sun

• The moon's gravitational pull

• The sun's rotation