Why do helium balloons pop in a hot car?
Write an essay please help:(

Like all substances, helium molecules expand when you heat them. They are already less dense than air (this is why helium balloons float in the air), and heat makes them even denser. ... When the gas molecules fly around in different directions, they collide with other objects and create pressure. Helium expands in the heat. Warm or hot temperatures can bring balloons down faster than their proper float time and may result in popping. DO NOT TO PUT BALLOONS INTO A HOT CAR OR LEAVE BALLOONS IN A HOT PARKED CAR. Due to our proximity to the beach, wind is another weather factor to look out for.

acid rain does not usually kill trees directly. instead, it is more likely to weaken the trees by damaging their leaves, limiting the nutrients available to them, or poisoning them with toxic substances slowly released from the soil. the main atmospheric pollutants that affect trees are nitrates and sulphates.

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