What is the primary reason for the occurrence of day and night on Earth?

• The Earth's orbit around the Sun

• The Earth's rotation on its axis

• The tilt of the Earth's axis

• The movement of the Sun across the sky

Why does the Sun appear to move across the sky during the day?

• The Sun is moving around the Earth

• The Earth is rotating on its axis

• The Earth's orbit around the Sun

• The tilt of the Earth's axis

What do we call the event when the Sun disappears below the horizon?

• Sunrise

• Noon

• Sunset

• Midnight

Why are days longer in the summer and shorter in the winter?

• The Sun moves closer to the Earth in summer

• The Moon's position affects daylight

• The Earth's tilt towards the Sun in summer

• The Earth's orbit is faster in summer

What causes the variation in daylight hours throughout the year?

• The Earth's rotation speed changes

• The Earth's tilt and orbit around the Sun

• The distance between the Earth and the Sun changes

• The Sun's energy output varies