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i want to login qq games with 2 or 3 accounts at same time need help

i want to login qq games with 2 or 3 accounts at same time need help

Pesticide leaked into the stream for exactly 1hr and at a rate that contaminated the stream at a uniform 0.25ppm concentration of methoxychlor. The stream was flowing at a rate of 136 liters per second. How much pesticide was lost from the sprayer during this time?

A leaking container of this pesticide containing 5kg of the pesticide was dumped into a stream with a flow of 10 L per second moving at 1 kilometer per hour. The container leaks at a constant rate of 5mg/sec. For what distance downstream is the water contaminated by fatal levels of the pesticide.