Grain sizes increase downstream as slope decreases in a stream channel. (True or false?)

Grain sizes increase downstream as slope decreases in a stream channel.
   a. True
   b. False

Question 2

A gaining stream is more likely to be found in a wet climate.
   a. True
   b. False

Question 3

A hyperconcentrated flow has between 20 and 47 percent sediment by volume.
   a. True
   b. False

Question 4

Which is likely to flow farther down to the flatter, wider part of a valley: a debris flow or a mudflow? Why?
  What will be an ideal response?

Question 5

The probability that a certain discharge or flow will be exceeded in any single year is equal to the inverse of the _______________.
   
  Fill in the blank with correct word.