Air and Atmosphere

Air and Atmosphere
Human respiratory system contains respiratory tract and
lungs
stomach
pancreas
liver
Author: rikazzz Comment
Air and Atmosphere
Rust is actually
iron oxide
hydro oxide
nitro oxide
none of them
Author: rikazzz Comment
Air and Atmosphere
Iron rusts when it comes in contact with
carbon dioxide and water
oxygen and water
many gases
nitrogen and oxygen
Author: rikazzz Comment
Air and Atmosphere
The sphere that prevent the ultraviolet rays from sun is known as
exosphere
troposphere
atmosphere
stratosphere
Author: rikazzz Comment
Air and Atmosphere
A reaction in which oxygen is used up for the production of thermal and light energy is known as
production
combustion
reaction
respiration
Author: rikazzz Comment
Air and Atmosphere
A method that is mainly used in separating the components of crude oil is known as
chromatography
filtration
evaporation
fractional distillation
Author: rikazzz Comment
Air and Atmosphere
Oxidation is accompanied by
volume
heat and light
light
heat
Author: rikazzz Comment
Air and Atmosphere
Sunlight is absorbed by chlorophyll in leaves, while the gaseous exchange takes place through
leaf stomata
roots
pollen grain
none of them
Author: rikazzz Comment
Air and Atmosphere
Fractional distillation consists of
two steps
three steps
four steps
five steps
Author: rikazzz Comment
Air and Atmosphere
Greenhouse gases and other harmful gases are bringing huge damage to the atmosphere like
acid rain
global warming
ozone hole
all of them
Author: rikazzz Comment

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