Question

Which of the following factors determine diurnal and seasonal vxiation in intensity and amount of solar radiation ?
(a) Inclination of the axis of the earth.
(b) Length of the day.
(c) Extent of clouds
(d) Angle of inclination of the Sun's rays
Answer options :
(1) (a) and (b)
(2) (b) and (c)
(3) (c) and (d)
(4) All the above

Answer 1

sorry I am not confirmed but (a, b)