Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
Q: North america receives less direct sunlight during the winter is it winter in north america when it is summer in south america.
A: 
Why is it winter in North America when it is summer in South America?
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
Q: North america receives less direct sunlight during the winter is it winter in north america when it is summer in south america.
A: 
user
Why is it winter in North America when it is summer in South America?
assistant
Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
Q: North america receives less direct sunlight during the winter is it winter in north america when it is summer in south america.
A: 
Why is it winter in North America when it is summer in South America?