Physical Science SUSA (2020-21 A party shop delivers helium-filled balloons to homes and businesses. The owners realice from experience that on hot summer days they should inflate the balloons only three quarters full On cold winter days they can hilly
inflate the balloons. Which of the following is the BEST hypothesis to explain this observation?
Air outside the balloons leaks into the balloons
The helium gas is more active in the winter season
As the temperature increases, the helium in the balloons expands
Outdoor air pressure in the summer is less than indoor air pressure

As the temperature increases, the helium in the balloons expands.

Explanation:

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explanation:

as we know our atmosphere or air have different levels. every level has other gasses, and every gas has another permeability. when the light comes from lower permeability to higher permeability, it changes its direction. so that means that when the light comes from the moon to the earth, it changes it's direction many more times. it basically means that the shape of the light part of the moon is changed on the earth.

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