Some examples of green technology are _______
A) Recycling materials
B) Biodegradable supplies
C) Solar panels
D) All of the above
E) None of the above
D
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Answer the following statement(s) true (T) or false (F)
1. United Laboratories, Inc. classifies toggle switches used for lighting circuits as general-use snap switches and divides these switches into four categories. 2. The AC/DC general-use snap switch is usually marked AC/DC. 3. A three-way switch contains one common terminal and three traveler terminals. 4. The three-way switch has no ON or OFF position.
Nitrous oxides constitute approximately 50 percent of the pollutants in automobile exhaust
Indicate whether the statement is true or false.
Identify the welding process that uses resistance welding where the base materials are clamped between two electrodes and a momentary electric current produces the heat for welding at the contact spot.
What will be an ideal response?
The temperature of the ground stays nearly constant at any depth below:
A) 4 feet. B) 28 feet. C) 6 feet. D) The frost line.