Atmospheric Carbon Dioxide Concentration
The concentration of carbon dioxide (CO2) in the Earth's atmosphere is a key factor in climate regulation.
Based on the options provided, the approximate concentration of carbon dioxide in the atmosphere is 0.03%.
Explanation:
- Option 1 (3.34%) and Option 3 (0.38%) are significantly higher than the actual atmospheric concentration.
- Option 2 (0.05%) is closer but still higher than the accepted approximate value.
- Option 4 (0.03%) is the closest approximation among the choices given, representing historical levels before significant increases due to human activity.
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- Read the given statements, labelled Assertion (A) and Reason (R), and select the most appropriate option with respect to them.
Statements:
'A': Carbon dioxide is not always a pollutant.
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Important Questions from Environmental pollution
Photochemical smog is a resultant of the reaction among
Which of the following is NOT responsible for the degradation of our environment?
With reference to furnace oil, consider the following statements:
1. It is a product of oil refineries.
2. Some industries use it to generate power.
3. Its use causes sulphur emissions into environment.
Which of the statements given above are correct?
Why is there a concern about copper smelting plants?
1. They may release lethal quantities of carbon monoxide into environment.
2. The copper slag can cause the leaching of some heavy metals into the environment.
3. They may release sulphur dioxide as a pollutant.
Select the correct answer using the code given below.
Magnetite particles, suspected to cause neurodegenerative problems are generated as environmental pollutants from which of the following?
1. Brakes of motor vehicles
2. Engines of motor vehicles
3. Microwave ‘Stoves within homes
4. Power plants
5. Telephone lines
Select the correct answer using the code given below.
