You are presented with the question "What can cause plants to receive less energy" and the following answer choices: 
- summer solstace
 - Dehydration
 - fossil fuels
 - exposure to cold
 - lunar orbit
 - They may not survive.
 - solar flares
 - the Earth being tilted

Now knowing that the Earth being tilted on its axis causes ones side of the Earth to receive less energy from the Sun than the other side and plants obtain their energy from the sun, choose the best answer.


 

        the Earth being tilted 