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Match it! Select the correct answer from the pull down...Good luck!
Which element makes up 78% of Earth's air?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
What holds the atmosphere around Earth?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
Why do astronauts need to wear special suits in space?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
Which of the following protects earth by absorbing radiation from the Sun?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
For the shuttle to leave the atmosphere and travel into space, what needs to happen?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
Which element makes up 21% of Earth's air?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
Why is the recycling of water important on a shuttle?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
Which of the following is a characteristic that supports life on Earth?
a greater force than gravity must be applied
to regulate the pressure and temperature and provide oxygen
they can not take enough water with them
nitrogen
gravity
All o fthe above
oxygen
ozone layer
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