In 1836 John Daniell invented a primary cell in which ____ was eliminated in the generation of electricity.
a. oxygen
b. nitrogen
c. carbon
d. hydrogen
d. hydrogen
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Answer the following statements true (T) or false (F)
Base points are included in block definitions, insertion points in block references.
Match the type of pipe fitting to the description:
I. Plug II. Cap III. Bushing IV. Flange a. Used to close (seal) the open end of a pipe; may be threaded, glued, or welded. b. Threaded on both the internal and external surfaces; used to join two pipes of differing sizes. c. Consists of a mating plate used to join two pieces of pipe or a valve to a piece of pipe. d. Used to close the end of a piping run; the threading is male and fits into a female-threaded fitting; can be glued, threaded, or welded into place.
Briefly describe the basic operating principle of a reciprocating gasoline engine.
What will be an ideal response?
The universal soil-loss equation (USLE) suggests that soil erosion loss is a product of all but one of the following factors:
A) climate B) vegetative cover C) slope length D) soil drainage E) sloped steepness