A rift valley is formed by the downward displacement of a block of the earth’s surface between tectonic faults.
a. True
b. False
a. True
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Before a hypothesis can become an accepted part of scientific knowledge, it must pass objective testing and analysis
Indicate whether this statement is true or false.
In an aldehyde or ketone, the term a-carbon is applied to which of the following?
A) a terminal carbon atom B) the carbon atom of the carbonyl group C) a carbon atom which is directly adjacent to the carbonyl group D) none of the above
What soil order is formed primarily from volcanic ash?
A. Spodosols B. Podosols C. Aridisols D. Andisols E. Vertisols
One major difference affecting the scope of environmental issues of the past and present is the
A. Development of new fields such as environmental science B. Extremely fast transmission of information through the Internet C. Current ability to alter the natural world through technology D. Relatively new emergence of environmentalists E. Historical ignorance of the interconnected nature of environmental issues