HHHG

When the UAE government announced its policy on nuclear energy and its interest in

assessing nuclear energy as an additional source of power to meet the future demand

of electricity?

• 2007

• 2008

• 2009

• 2012

How many reactors at Barakah nuclear energy plant

• 1

• 2

• none

• 4

Polyvinyl chloride (PVC), can be used for

• Transparent cups and food wrap

• Plumbing pipes and hotel room keys

• Yogurt and margarine containers

• Bags and luggage

Sulfur oxides have been implicated as important contributors to the problem of acid rain. What is the principal anthropogenic source of these compounds?

• Coal-fired power plants

• Transportation

• Lightning

• Volcanoes

The greenhouse effect refers to the process by which

• Atmospheric oxygen and nitrogen absorb heat radiated by Earth

• Atmospheric nitrogen absorbs ultraviolet radiation radiated by Earth

• Atmospheric gases trap and return infrared radiation radiated by Earth

• Greenhouse gases absorb ultraviolet radiation from the sun, warming the

  molecules

Which region of the ultraviolet spectrum is absorbed least by the atmosphere?

• uv-A

• UV-B

• UV-C

• They are all absorbed approximately equally

Identify the single most effective strategy to reduce carbon dioxide emission.

• Use methane rather than gasoline for fuel in cars and trucks

• Develop alternate energy sources that do not rely on fossils

• Use wood as a home heating fuel

• Convert all vehicles to diesel fuel

Chlorofluorocarbons rise to the stratosphere and

• React directly with stratospheric ozone to destroy it

• Interact with UV energy to produce free radicals that destroy ozone

• Interact with UV energy to produce free radicals that react with oxygen to create

  ozone

• React with free radical to remove carbon dioxide

All of these pollutants can be detected by their odors except

• CO

• O3

• SO2

• N02

What international agreement attempted to reduce the use of CFCs?

• Kyoto Protocol

• Oslo Accords

• London Treaty

• Montreal Protocol