Carol claims "when you square a number, the answer is always bigger than the number you started with."Is she correct? Explain your answer.

No, This is not necessary

Step-by-step explanation:

She is not correct because there are some number which on square have a result smaller than the actual number.

Let me make you more clear by the following example:

=> The number 0.5 on squaring becomes 0.25

And 0.25 is less than the actual number 0.5.