Match the following:
$\begin{array}{cccc}& \text{Animals}& & \text{Breathing organs}\\ 1.& \text{Dolphin}& \text{A.}& \text{Lungs}\\ 2.& \text{Human}& \text{B.}& \text{Skin}\\ 3.& \text{Fish}& \text{C.}& \text{Blowhole}\\ 4.& \text{Earthworm}& \text{D.}& \text{Gills}\end{array}$

The correct option is C

1- c; 2- a; 3- d; 4-b.

Different animals use diffirent organs to breathe air:
$\bullet$ Sea animals like dolphins and blue whales breathe using blowholes.
$\bullet$ All fishes have gills to breathe.
$\bullet$ Human beings breathe using their lungs.
$\bullet$ Earthworms breathe through their skin.