Air and Atmosphere

Air and Atmosphere
Compounds made up of ammonia are generally used for the manufacturing of
fertilizer
explosives
dyes
all of them
Author: rikazzz Comment
Air and Atmosphere
Both gas and liquids are fluids. Fluids are substances which don’t have fixed
shape
color
style
size
Author: rikazzz Comment
Air and Atmosphere
The percentage composition of oxygen in exhaled air is
16%
20%
22%
32%
Author: rikazzz Comment
Air and Atmosphere
Photosynthesis occurs during the
night
day time
evening
none of them
Author: rikazzz Comment
Air and Atmosphere
The percentage composition of carbon dioxide in exhaled air is
8%
4%
6%
10%
Author: rikazzz Comment
Air and Atmosphere
The process of burning under the presence of oxygen is known as
combustion
reaction
respiration
production
Author: rikazzz Comment
Air and Atmosphere
As the temperature of the air increases, there is an increases in the capacity of
mineral
water vapor
molecules
atom
Author: rikazzz Comment
Air and Atmosphere
The second step of fractional distillation is heating the mixture so that components evaporate at their
boiling point
freezing point
neutral point
none of them
Author: rikazzz Comment
Air and Atmosphere
The moisture capacity of air is called
vapors
humidity
moist
wet air
Author: rikazzz Comment
Air and Atmosphere
People having respiratory problems like asthma, are dosed medically with
calcium
oxygen
nitrogen
magnesium
Author: rikazzz Comment

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