Combine the sentences using the correct subordinating conjunction.
After some parts of the world get an abundance of rain others get little or none.
Whereas some parts of the world get an abundance of rain, others get little or none.
Some parts of the world get an abundance of rain if others get little or none.
Some parts of the world get an abundance of rain in case others get little or none.
Provided that some parts of the world get an abundance of rain others get little or none.