Because he is assigned to bring Percy to camp, and if he doesn't he will not get his searchers license. P.S. I love this series!!!
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The population is people who buy mystery novels at that specific book store.
Answer:
I believe refraction plays a big part on why we can distinguish water from air. As light hits the water, it's bent to a different angle because it's slowed down. If you've ever held a pole in the water, you'll see a break in the line where it meets the water. That's the effect of refraction.
Explanation: