Two safety features found in most laboratories are a safety shower and a safety fountain with two water jets . what is the main purpose of the safety fountain ?

option a is correct i.e.

explanation:

in context to the membrane of nerve impulse, the outer membrane of neuron is semi permeable that is only sodium ions can pass through the membrane i.e. smaller ions can pass through the membrane while larger ions cannot pass through it.

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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