Provide your best answer for the following question. Give ONLY the answer, no other words or explanation.
For example:

Answer: <most likely answer, as short as possible; not a complete sentence, just the answer!>.

The question is: Some plants grow only in specific places in the world. Some cacti, for example, grow only in deserts. Which of the following is most important in determining where a plant can grow and survive?
climate
Climate.