What is radio carbon dating ?

Which one of the following statements is true concerning the radioisotope carbon -14 that is used in carbon dating?

Which isotope of carbon is used to radio carbon dating?

The radioactive isotope of carbon used in radio carbon dating is :

The proper rays for radio carbon dating are

What do you mean by radio-carbon dating?

State two uses of radio carbon dating.

State two uses of radio carbon dating.

State two uses of radio carbon dating.

A scientist has a house just beside a busy highway. He collects leaves from some plants growing in his garden to do radio-carbon dating ( to estimate the age of the plant by estimating the amount of a radioisotope of carbon in its tissues ). Surprisingly the radio-carbon dating shows that the plant is a few thousand years old. (a) Was the result of the radio-carbon dating wrong or can you propose a reason for such an observation ? (b) What simple experiment can be done to test the reason that you have proposed ?