Book (Practical) Picture book Umi wa Ooi Umi wa Kai no Hanashi / Kako Satoshi

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

Picture Book
[Introduction to the Contents]
How much water is there in the ocean? What is at the bottom of the ocean? How much salt is dissolved in the ocean? When was the ocean formed?
The ocean is wide and large and has a lot of water. It is important for human beings to live. The ancestors of the creatures of the earth were born in the ocean a long time ago. The ocean is the hometown of all creatures. So let's learn about the ocean better and more deeply.