Which radiation in sunlight causes heating affect?
(a) ultraviolet
(b) infra-red
(c) visible light
(d) all of these
Which radiation in sunlight causes heating affect?
(a) ultraviolet
(b) infra-red
(c) visible light
(d) all of these
(a) ultraviolet
(b) infra-red
(c) visible light
(d) all of these