Given a statement, generate a question such that the answer is contained in that statement.

[Q]: The testicles connect to the vas deferens, then the seminal vesicles, then the prostate, then the urethra.
[A]: What do the testicles connect to?

[Q]: The calcium carbonate hardens and protects the shell.
[A]: What hardens and protects the shell?

[Q]: weather can change a planet's conditions
[A]:
What can change a planet's conditions?