Which is there a low concentration of dye

The correct answer will be option-at the bottom of the cup

Explanation:

In the given figure, the mixing of the dye in water has been shown which shows that dye in water gets mixes slowly.

The addition of the drop of dye from the top shows that dye has mixed in water not instantly but gradually so the dye in the given picture has not reached the bottom of the cup.

Since this dye is not present at the bottom of the cup, therefore, this option is the correct answer.

1 digestive system

2 stomach

3 bladder

4 carbon deoxide

5 tiger

we would need to see the picture to answer it