Light rays from the sun are absorbed by CO2 and re-radiate as _ radiations.
Correct answer: C. Infra-Red
- A. Ultraviolet
- B. Indigo
- C. Infra-Red
- D. Green
Explanation
Infra-Red: This option is the correct answer. Light rays from the sun, including visible and ultraviolet light, can be absorbed by CO2 in the Earth's atmosphere. The absorbed energy is then re-radiated by CO2 as infrared (IR) radiation. This process contributes to the greenhouse effect and the warming of the Earth's atmosphere.
This question appeared on the UHS MDCAT 2015 paper, which you can sit online with every answer explained.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? support@testustad.com
About Atmospheric Pollution
Atmospheric pollution covers harmful gases and particles released by vehicles, industries, burning fuels and natural sources. It includes carbon monoxide, sulfur and nitrogen oxides, particulate matter, smog, acid rain, the greenhouse effect and ozone depletion, along with their causes, chemical reactions, environmental effects and control methods.
Practise Environmental Chemistry
221 free Environmental Chemistry MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Atmospheric Pollution questions
Ozone is a layer of atmosphere extending from _ km above Earth and absorbs ultraviolet radiation.
The acid rain water has pH:
The incarnation process can reduce the volume of the water by:
The gases which are produced by burning of fossils fuels and are responsible for acid rain are:
_is the major source of acid deposition in the atmosphere.
The energy from ultraviolet light is sufficient to break the _ bonds in CCl2F2.