Unit 6 Space: Question Preview (ID: 17227)

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Which of the following is a characteristic that supports life on Earth?
a) Presence of Oxygen b) Presence of water c) Force of Gravity d) All o fthe above
How many layers does the atmosphere have?
a) 2 b) 3 c) 5 d) 7
Which element makes up 78% of Earth's air?
a) nitrogen b) oxygen c) other gases d) all of the above
Which of the following protects earth by absorbing radiation from the Sun?
a) moon b) ozone layer c) gravity d) clouds
Why is the recycling of water important on a shuttle?
a) there is water in space b) they don't recycle water c) they can not take enough water with them d) They can pack all the water they will need.
How is eating different in space?
a) food is dehydrated b) food must be carefully eaten c) food is in pouches instead of plates d) all of the above
Why do astronauts need to wear special suits in space?
a) to make it easier to eat b) to regulate the pressure and temperature and provide oxygen c) to keep them warm d) no gravity in the shuttle
Which element makes up 21% of Earth's air?
a) nitrogen b) oxygen c) carbon dioxide d) other gases
For the shuttle to leave the atmosphere and travel into space, what needs to happen?
a) the shuttle can not leave the atmosphere b) no forces need to be applied c) a force less than that of gravity must be applied d) a greater force than gravity must be applied
What holds the atmosphere around Earth?
a) gravity b) rings c) nothing d) oxygen
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