Assuming each of the other 24 students also inhales and exhales at a normal volume and rate, on average how many virus particles would each student inhale/breath by the end of the lecture period?

Giga is the second highest prefix on the normal scale, the first is terra.

The salt in the sea water dehydrated the sailor because her body could not take in the amount to salt in the sea water

The soviet union beat the us to the first successful launch, with the october 4, 1957, orbiting of sputnik 1, and later beat the us to have the first human in earth orbit, yuri gagarin, on april 12, 1961. the "race" peaked with the july 20, 1969, us landing of the first humans on the moon with apollo 11