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—10.When was the United Nations (UN) founded?
—A: 1945
—11. Visible light splits into red, orange, yellow, green, blue, indigo and violet light when it passes through a triangular chunk of glass called ________.
—A: prism
—12.
—Q: Do freshwater fish drink?
—A: No, they don’t drink. They absorb the water they need through their skin.
—Q: Do fish that live in the salty sea drink?
—A: Yes, they drink water through their mouths. They do this so they can filter out some of the salt.
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