Which of the following is produced when dead plant material decays in the absence of air?
Which two main gases are produced when you burn a piece of wood?
Which of the following is true about ozone?
Which of the following is a powerful irritant which can aggravate the symptoms of people who suffer from respiratory disorders?
How much cooler does the air get for every 1 km increase in altitude in the troposphere?
Which of the following is produced when electrical discharges pass through oxygen in the air?
The outer layer of the thermosphere is
Height of troposphere is
The occurrence of weather is in
What is meant by the term 'meso'?
What is the source of lead compounds?
The atmosphere is divided into how many layers?
How much higher can be the temperature inside a greenhouse as compared to the outside?
Minimum temperature of the troposphere is
The temperature of the outer mesosphere is
If silk clothes are left in the open air for a week or so, their color fades because of
Height of thermosphere is
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