If he's blind he can speak he just can't see so I'm going to say this is a kind of question to trick question.The blind man is going to say he wants sunglasses he doesn't need to "SHOW" anything.
Answer:
In clean conditions, breast milk can stay in the fridge for up to four days. However, it is ideal to use or freeze the milk within three days.
Explanation:
Hope this helps!
=)
Carcinogens is a substance capable of causing cancer in living tissue.
Answer is: cancer causing agents