Which nitrogen compound is directly formed when naturally occurring nitrogen gas (N2) in the atmosphere is combusted in an automobile with an internal combustion (IE) engine?
A. NO
B. NO2
C. HNO3
D. N5O
Answer: A
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By the end of the Mesozoic, bony fish had gone through a three-fold evolution from primitive to
an advanced group called teleosts. Indicate whether the statement is true or false.
The Sahel
A) is just north of the Sahara Desert. B) was under the control of the Soviet Union. C) has precipitation that is under the influence of the ITCZ. D) increased in size substantially in the 1980s. E) all of the above
Match the term with the appropriate phrase.Match the term with the appropriate phrase. change in state from solid to gas
-halocline -pycnocline -condensation -sublimation -evaporation
Today, the reasons conservationists have given for protecting natural environments are shifting from arguments based upon __________ to arguments based upon __________.
a. ethics; economics b. aesthetics; ethics c. religion; ethics d. politics; aesthetics