[问答题]
The image shows a ringed seal (Pusa hispida)
c41 ennpl;0 *+sqk y rqab1 zezla8;:sthat lives i
sxck,5y/opxt onih* 3gx4/9, ahv xf/n the Arctic Sea.
1.Distinguish between the physical properties of air and water that allow the seal to mostly live in the sea.
2.Ringed seals glide into the water head first from ice shelves, rather like humans diving into a pool head first. Explain the advantage of entering the water in this way rather than ‘belly-flopping’ into the water.
