I wonder why the sea is salty :: and other questions about the oceans / I wonder why the sea is salty :and other questions about the oceans I wonder why the sea is salty and other questions about the oceans I wonder why the sea is salty：and other questions about the oceans I wonder why．The sea is salty and other questions about the oceans I wonder why the sun rises :: and other questions about time and seasons / Other title：Sea is salty and other questions about the oceans I wonder why lemons taste sour and other questions about the senses The sea is salty and other questions about the oceans I wonder why whales sing :: and other questions about sea life /