Question

A dam is a barricade built across a water stream to hold back or control the water flow. Dams are classified by the functions they serve. There are generally three types of dams: storage, diversion, and detention.

Storage dams are built to reserve water for later use. For example, a storage dam may be built to store excess water runoff, which can be used in times of drought. A diversion dam is created to divert water from a river or stream and into a flume or canal. Detention dams are built to reduce the effect of sudden floods. There are more than 70,000 dams in the United States. Although it is impossible to completely control the forces of nature, dams are able to provide limited water control necessary for many communities.
Which BEST completes the sentence?

Storage dams are built ______________.
a
for water skiers
b
to divert water from a river or stream
c
to reserve water for later use
d
to reduce the effects of floods

Answer 1

c — to reserve water for later use.