The gas that absorbs most of the harmful ultraviolet radiation in the stratosphere is __________?
A. Water vapor
B. Nitrous oxide
C. Carbon dioxide
D. Ozone
E. Chlorofluorocarbons
Author: Aroma Ann
Atmospheric ozone layer which protect us from UV-B and C is getting depleted most by addition of __________?
A. chlorofluorocarbon
B. carbon monoxide
C. carbon dioxide
D. sulpur dioxide
The Term Smog was introduced in 1905 by __________?
A. Des Voeux
B. Hult
C. Canon
D. Le Chatelier
Continue reading “The Term Smog was introduced in 1905 by __________?”
The most abundant gas in the stratosphere is __________?
A. Oxygen (O2)
B. Nitrogen (N2)
C. Carbon dioxide (CO2)
D. Ozone (O3)
E. Chlorofluorocarbons (CFCs)
Continue reading “The most abundant gas in the stratosphere is __________?”
What is Carcinogen?
A. Drugs for curing infectious disease
B. Drugs used for curing cancer
C. Cancer causing agent
D. Food colourants
Evaporation is a _________ process.
A. Cooling
B. Heating
C. Can’t tell – it depends on the temperature
D. Both a and c
Disease aggravated by air pollution is __________?
A. cholera
B. rheumatism
C. bronchitis
D. haemophilia
Which of the following is not considered a temperature scale?
A. Fahrenheit
B. Kelvin
C. Calorie
D. Celsius
The Native Place of Redwood trees is __________?
A. Australia
B. Amazon
C. California
D. Thailand
Continue reading “The Native Place of Redwood trees is __________?”
Black Buck is a __________?
A. Goat
B. Deer
C. Butterfly
D. Bird
