Which is the highest grade and most carbon-rich coal?
A. peat
B. anthracite
C. lignite
D. bituminous
Answer: B
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The cost of transporting raw materials in the manufacture of steel is unimportant in considerations of where to locate a steel mill
Indicate whether the statement is true or false.
Residence time is ________
A) the chemical change that occurs with time, when substances alter the growth and development of humans B) average length of time a molecule of a substance spends in the environment C) the length of time it takes for chemicals to be stored in the tissues of living organisms D) the chemical change that occurs with time, when substances are altered by the sun or metabolized by microorganisms E) the length of time it takes to produce toxic chemicals in the environment
A wave first begins to break against the shore when the ratio of wave height to water depth is about 1:2
Indicate whether the statement is true or false
Describe some of the possible ocean energy sources
What will be an ideal response?