Define ,'Toxic'.
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Evaluate this exponential expression,8. (2 + 3)2 – 42

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?

The appropriate concentration for an iodine sanitizer is