Four seasons

Different intensities of solar energy reach the southern and northern hemispheres through the year and this leads to ...

• day and night.

• four seasons.

• ellipse.

• orbits.

Between the summer and winter positions are two positions in the Earth's orbit when its axis is not tilted towards or away from the Sun.

• equinox

• solstice

• obliquely

• equator

Autumn equinox

• 21 March

• 23 September

• 21 December

• 21 June

Spring equinox

• 21 March

• 23 September

• 21 December

• 21 June

Summer solstice

• 21 March

• 23 September

• 21 December

• 21 June

winter solstice

• 21 March

• 23 September

• 21 December

• 21 June

The Sun's rays fall ___________ onto the Earth's surface at ................ on 23 September and 21 March.

• perpendicularly

  the equator

• perpendicularly

  their furthest distance south of the equator (Tropic of Capricorn)

• perpendicularly

  their furthest distance north of the equator (Tropic of Cancer)

The Sun's rays fall ___________ onto the Earth's surface at ................ on 21 December.

• perpendicularly

  the equator

• perpendicularly

  their furthest distance south of the equator (Tropic of Capricorn)

• perpendicularly

  their furthest distance north of the equator (Tropic of Cancer)

The Sun's rays fall ___________ onto the Earth's surface at ................ on 21 June.

• perpendicularly

  the equator

• perpendicularly

  their furthest distance south of the equator (Tropic of Capricorn)

• perpendicularly

  their furthest distance north of the equator (Tropic of Cancer)

Day and night are exactly 12 hours long everywhere on Earth.

• autumn equinox

• spring equinox

• summer solstice

• winter solstice