Advertisements
Advertisements
Question
The prime source of chlorofluorocarbons is ______.
Options
Domestic sewage
Refrigeration equipment
Industrial effluents
Vehicular emissions
Solution
The prime source of chlorofluorocarbons is refrigeration equipment.
Explanation:
Gaseous compounds, such as CFCs (chlorofluorocarbons), released from refrigerators, aerosol-sprayers and the packing material styrofoam, rise into the atmosphere.
APPEARS IN
RELATED QUESTIONS
What is the function of ozone in the upper atmosphere?
Give one harmful effect of CFC.
Depletion of ozone in the ozone layer is a cause for our worry. Why?
State two effects of ozone depletion.
Ozone is abundant in this layer. Ozone heats this layer as it absorbs from incoming ultraviolet radiation from the sun:
State how CFCs break ozone in the stratosphere.
Which of the following radiations is responsible for the conversion of atmospheric oxygen to ozone?
A motor car, with its glass totally closed, is parked directly under the sun. The inside temperature of the car rises very high. Explain why?
Gas A, found in the upper layers of the atmosphere, is a deadly poison but is essential for all living beings. The amount of this gas started declining sharply in the 1980s.
- Identify Gas A. How is it formed at higher levels of the atmosphere?
- Why is it essential for all living beings? State the cause for the depletion of this gas.
What is exactly measured in Dobson units or DU?
