Clouds appear white because the cloud droplets scatter all the visible wavelengths of sunlight about equally. This is largely due to the ____ of the cloud droplets.
A) composition
B) concentration
C) size
D) shape
Question 2
When it is January and winter in the Northern Hemisphere, it is ____ in the Southern Hemisphere.
A) January and summer
B) January and winter
C) July and winter
D) July and summer