pick from the following.
[a]. erosion.
[b]. streams.
[c]. desert.
[d]. flooding.
[e]. mice.
[f]. rivers.
[g]. stars.
[h]. clouds.

Fact 1: Lakes are formed by precipitation and runoff. Fact 2: Clouds form and precipitation occurs. Given the two facts above, what are lakes formed by?
Answer:
[h].