2 Uzupełnij luki wyrazami fresh lub salt.
Did you know....?
1 97% of the water in the world is ? water.
2 Icebergs are made of ? water.
3 It's easier to swim in ?
water.
4 The Dead Sea is a ? lake.
5 There are a number of dolphin species that live in ?
water. The biggest river dolphin lives in the Amazon.​