QUESTION $7$

Referring to Table $1\mathrm{.}9,$ which of the following soils has the highest infiltration rate $($in$/$hr$)?$

day

silt

loam

sand

QUESTION $8$

Complete the definition of the unit hydrograph: "A unit hydrograph accounts for of precipitation falling evenly over the entire area of a watershed.

$1f{t}^2$

$1ft$

$1$ inch

$1$ acre