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To deliver more oxygen to your muscles in preparation for a flight or fight response.

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14y ago

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Why does the burning candle go out when we blow on it?

Blowing on the candle increases the rate of oxygen supply, causing the flame to burn more rapidly and use up the available fuel (wax) quicker. Eventually, the flame runs out of fuel and is extinguished.


Why is a hole in a ship near the bottom is more dangerous than one nearer the surface?

A hole near the bottom of a ship is more dangerous because it allows water to enter the hull where the weight of the water can cause the ship to sink lower in the water and potentially capsize. This can lead to quicker flooding and a higher risk of the ship sinking compared to a hole nearer the surface where there is less pressure from the water.


Why is a room heater placed near the floor of a room and not near its ceiling?

A room heater is typically placed near the floor because heat rises, allowing it to warm the air in the room more effectively and evenly. Placing the heater near the ceiling would result in the heat accumulating near the top of the room, making it less efficient in heating the entire space.


Why are traffic lights red for stop and green for go?

"Traffic lights are the colors just so so deal with it" actually they implimented this because normally red would equal danger and green equals "all set" "ready", just like fire is hot.


Why did Brian feel the hair on the back of his neck go up?

Brian felt the hair on the back of his neck go up as part of the fight or flight response triggered by his body's sympathetic nervous system. It could be in response to a perceived threat or danger, causing the body to prepare for action by increasing alertness and sensitivity.