Question

Based on the information given above, which of the following is true?

a) To reduce premature deaths, NOx emissions from diesel vehicles should be less than 0.25 g/km.

b) NOx emissions from diesel vehicles can exceed the 0.25 g/km limit if they are in a mixture with

hydrocarbons.

c) It is not necessary to control carbon dioxide if carbon monoxide emissions are limited.

d) Particulate Matter has no negative effects on air pollution.​

Answer 1

Answer:

correct options is

b) Box emissions from diesel vehicles can exceed the 0.25 g /km limit if they are in a mixture with

Answer 2

Concept: Impact of particulate matter present in the atmosphere.
Answer: The answer is option B.
Explanation:
•NOx emissions from diesel vehicles when mixed with hydrocarbons by the action of solar ultra violet radiation leads to the formation of photochemical smog that exceeds 0.25g/km limit.
•The smog contain anthropogenic air pollutants mainly ozone, nitric acid and organic compounds which are trapped near the ground by temperature inversion.
Hence,the correct answer is option B.