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20 questions
Which of the following gases was probably a major part of the early atmosphere?
Carbon Dioxide
Nitrogen
Oxygen
Argon
In the modern day atmosphere, what is the approximate percentage of nitrogen?
0.04%
21%
78%
1%
The early atmosphere contained a lot more water vapour than the modern atmosphere. Where did it go?
It escaped into space
It condensed to form the oceans
It was absorbed by plants
It was broken down to form oxygen
What biochemical process absorbs carbon dioxide from the atmosphere and replaces it with oxygen?
Respiration
Digestion
Photosynthesis
Precipitation
What is the laboratory test for Oxygen gas?
Puts out a glowing splint
Makes a squeaky pop sound with a burning splint
Relights a glowing splint
Burns with blue color
What is the name of the atmospheric process which keeps the Earth warm by absorbing radiation from the Sun?
Global Warming
Greenhouse Effect
Ozone Depletion
Reflection of Radiation
Which of the following is a greenhouse gas?
Oxygen
Nitrogen
Argon
Carbon Dioxide
Which of the following is a cause of global warming?
Burning fossil fuels to generate electricity
Using wind farms to generate electricity
Using solar cells to generate electricity
Drilling for petroleum from earth crust
Which of the following is an effect of global warming?
Flooding of low lying coastal land
Longer days in the summer
More crops to feed a growing world population
High production of solar energy
Which of the following could help reduce one of the possible effects of global warming?
Moving to colder parts of the world
Increasing agricultural activities and farming
Fracking to extract more fossil fuels from the crust
Planting drought-resistant crops
A mixture of gases that surrounds the Earth like a blanket.
Atmosphere
Troposphere
Ozone
Nitrogen
Gas in the atmosphere that protects the Earth from the Sun's radiation.
Atmosphere
Troposphere
Ozone
Nitrogen
Which layer of the atmosphere do we live in?
Troposphere
Mesosphere
Stratosphere
Exosphere
The gas found in atmosphere about 21% is ...............
Nitrogen
Oxygen
Argon
Flatulence
Water vapor that has condensed in the air to form clouds can return to Earth in the form of _____________.
Evaporation
Condensation
Precipitation
Decomposition
Earth's atmosphere is held down by ..............
Radiation
Gravity
Magnetism
Conduction
Element that forms ozone is ........................
Nitrogen
Oxygen
Hydrogen
Carbon
Which of the following is a property of air?
Mixture of gases
Made up of atoms and molecules
Has mass and density
All of the them
The atmosphere serves several purposes. Which is NOT a purpose of the atmosphere?
Provides oxygen that we breathe
Acts like a blanket to keep the earth warm
Protects us from the sun's UV rays
Provides gravity to the earth
Which layer of the atmosphere is the most variable, and has all of the weather activities?
Troposphere
Stratosphere
Mesosphere
Thermosphere
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