Explain the difference between point and nonpoint sources of water pollution
What will be an ideal response?
Point source is water pollution that is from a specific place. For example, a factory that dumps waste in a river is a point source. Nonpoint means that pollution does not come from a single point but from a wide area and is difficult to identify.
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A wind farm is an interconnection of ________________.
Fill in the blank(s) with the appropriate word(s).
Due to the absence of any moving electrical contacts, which type of motor should be used where the motor is exposed to flammable dust or gas?
a. AC motor b. Shunt motor c. Squirrel cage induction motor d. Two loop DC motor
The HVAC technician should visualize the sheet in squares of approximately ______ inches and theen read each section from left to right.
Fill in the blank(s) with the appropriate word(s).
The ____________________ type of transmission signal is used in applications where a spark may cause an explosion.
Fill in the blank(s) with the appropriate word(s).