a) storage(conservation) reservoirs e) minimum pool level
b) distribution reservoirs f) normal pool level
c) drought g) sedimentation
d) yield h) flood
1) _______ can retain excess water from periods of high flow for use during periods of drought.
2) Many cities provide for the construction of _______because of the varying rate of water consumption during the day.
3) _______ is the maximum elevation to which the reservoir surface will rise during ordinary operating conditions.
4) _______ is the lowest elevation to which the water surface in the pool is to be lowered under normal conditions.
5) _______ is the amount of water which can be supplied from the reservoir in a specified interval of time.
6) _______ is the process of deposition of a solid material from a state of suspension or solution in a fluid (usually air or water).
7) _______ is lack or insufficiency of rain for an extended period that severely disturbs the hydrologic cycle in an area.
8) ________ is a high-water stage in which water overflows its natural or artificial banks onto normally dry land, such as a river inundating its floodplain.
Find in the text the synonyms of the following words.
1) to construct - … 6) to influence - …
2) to produce, to make - … 7) to supply -…
3) to be situated - … 8) pervious - …
4) to control - … 9) chief - …
5) quantity - … 10) to alter - …
Find in the text the antonyms of the following words.
1) variable - … 5) moist - …
2) uncontrolled - … 6) constant, permanent - …
3) dangerous - … 7) insignificant - …
4) to separate - … 8) to hide - …
Make nouns from the following verbs.
Model: to cover → a cover
to require →… to depend→…
to regulate →… to result→…
Make verbs from the following nouns.
Model: a cover → to cover
characteristic →… design→… cost→…
a size →… distribution→… loss→…