True/False
Indicate whether the
statement is true or false.
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1.
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Methane is colorless, odorless and non-flammable.
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2.
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Methane can be used as a fuel and in the production of nitrogen
fertilizers.
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Numeric Response
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3.
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Ozone is a compound, that in the right layer in the atmosphere, protects us from
radiation. Ozone molecules are composed of _____ oxygen atoms.
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4.
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It was estimated that in 1990, about ______% of all particulate emissions in the
United States were from agricultural activities.
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Completion
Complete each
statement.
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5.
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The refrigerant that was used in air conditioned vehicles (cars, trucks, cabbed
tractors, etc.) that contained the ozone damaging CFCs was known as R-12. It’s replacement that
does not contain these compounds is known as ____________.
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6.
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The main sources of hydrocarbon emissions are from the combustion of
________.
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7.
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Modern engines in automobiles, trucks, etc. contain EGR valves on the engine to
help reduce pollution. EGR stands for: ____________ ____________ _______________
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8.
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In nature, methane is formed by the _______________ decomposition of vegetable
matter.
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9.
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Agricultures main source of methane is from ____________ wastes.
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10.
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________________________ refer to small particles that become suspended in the
air. These tiny particles appear as smoke or dust clouds.
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