F: Natural Light

Question 1

by daylight received from the sky.

Answer 1

Naturally

Question 2

That part of solar radiation
that reaches the earth’s surface as a
result of scattering in the atmosphere.

Answer 2

Skyliight

Question 3

is sometimes used as the
main source of light during daytime in
buildings

Answer 3

Daylight

Question 4

*In architecture this is an unroofed external
space provided within the volume of a large building to allow
light and air to reach what would otherwise be a dark or
unventilated area.

Answer 4

Lightwell