When the northern end of the earth's axis is tilted away from the sun, the least direct sunlight falls on the Northern Hemisphere.
(the northern end of the earth's axis; is tilted; away from the sun) (the least direct sunlight; falls; on the Northern Hemisphere; T:When the northern end of the earth's axis is tilted away from the sun)
the northern end of the earth's axis the least direct sunlight
is tilted falls
away from the sun
on the Northern Hemisphere T:When the northern end of the earth's axis is tilted away from the sun