A fisherman and his young son arein a boat on a small pond. Both are wearing lif

Question

A fisherman and his young son arein a boat on a small pond. Both are wearing life jackets. The sonis holding a large helium filled balloon by a string. Consider eachaction below independently and indicate whether the level of thewater in the pond, Rises, Falls, is Unchanged or Cannot tell.

The fisherman fills a glass with water from the pond and drinksit.
The son pops the helium balloon.
The fisherman lowers himself in the water and floats on hisback.
The fisherman knocks the tackle box overboard and it sinks to thebottom.
The son gets in the water and pops the helium ballon
The fisherman lowers the anchor and it hangs one foot above thebottom of the pond.

Explanation / Answer

The fisherman fills a glass with water from the pond anddrinks it. unchanged   
The son pops the helium balloon. rises
The fisherman lowers himself in the water and floats on his back.unchanged
The fisherman knocks the tackle box overboard and it sinks to thebottom. falls
The son gets in the water and pops the helium ballon rises
The fisherman lowers the anchor and it hangs one foot above thebottom of the pond. unchanged

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