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The Earth : Question 1
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The Earth


1. Identify X and Y



2. What is the relationship between X and Y?




3. Where might this photograph have been taken from?




4. If you were a visitor from another planet looking at X and Y from outer space, give two reasons why you might suspect that Y supports life but X does not.

Reason 1 =



Reason 2 =



5. You decide to visit X. What three things would you need to take with you on your visit to X that you do not need to take if you visit Y?




6. Describe one way in which X has a daily effect on Y.




7. Why is X usually only visible from Y at night?