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What is the predicted population of Earth by 2100?
11 billion
9 billion
5 billion
Why might humans need a new home in the future?
Because Earth is becoming too crowded
Because people want to visit space
Because the Moon is better than Earth
Which two planets are mentioned as possible new homes?
Mercury and Jupiter
Earth and Pluto
Mars and Venus
Why is gravity important for humans?
To eat food
To stay healthy and on the ground
To breathe better
Which planet has gravity similar to Earth's?
Venus
Jupiter
Mars
Which planet is too hot for humans?
Saturn
Mars
Venus
Why is it difficult to live on Mars or Venus?
Because they are too colorful
Because they don’t have enough oxygen
Because they have too many people
What is one advantage of space stations?
They are made of glass
They are near Earth
They are cheaper than houses
What is one disadvantage of space stations?
No gravity
Too much water
Too much oxygen
What does the author think about the idea of a new home for humans?
It’s strange, but very exciting
It’s impossible and dangerous
It’s boring and scary
Which sentence is in the future tense?
People live in space.
eople are living in stations.
The world’s population will reach 11 billion.
Which one is a comparative adjective?
Station
Oxygen
Hotter
Change this to past simple: “People will need to stay inside all the time.”
People need to stay inside.
People will stayed inside.
People needed to stay inside all the time.
Which sentence has a modal verb?
The people are healthy.
We can build these near Earth.
Earth is big.
Why is Venus not a good place to live?
Because it is too hot and has little oxygen
Because it’s full of flowers
Because it has too many people
What is oxygen?
A type of food
A gas we need to breathe
A space station
