Atomic physics - nuclear fission

[lingling]

Homework Statement
1. Which of the following statements is / are not correct?

(1) In fission, two large fragments of equal masses are produced from a nuclide.
(2) Natually occurring elements perform fission spontaneously.
(3) 2 H2O --> 2H2 + O2 involves nuclear fission.

Homework Equations

/

The Attempt at a Solution

3. It's a MC question and the answer is

D (1), (2) and (3)

My question is: I don't understand the meaning of statement (2).
Thus I 've got a wrong answer.
Can anyone please kindly explain to me ?

 

[Hootenanny]

Do you know what a naturally occurring element is? How would you define a naturally occurring element?

 

[lingling]

Do you know what a naturally occurring element is? How would you define a naturally occurring element?

Argee! That's why i don't know how to solve this question.

 

[dextercioby]

Let's think about (3) for a second. What's the answer and why ?

Daniel.