When we say that water droplets in the atmosphere cause a rainbow to appear, we mean 'cause' in the sense of a:
A) Necessary but not a sufficient condition.
B) Necessary and a sufficient condition.
C) Sufficient but not a necessary condition.
D) Relative but not an absolute condition.
E) Relative and an absolute condition.

Question

Quizplus · Accepted Answer

Water droplets in the atmosphere are a necessary condition for a rainbow to appear because without them, the physical process of light refraction and dispersion that creates a rainbow cannot occur. However, they are not a sufficient condition on their own, as other factors such as the presence of sunlight and the observer's position relative to the sun are also required.

When We Say That Water Droplets in the Atmosphere Cause