observing the size of a herd of elephants that are all the same species would be an observation at the what level

Plants, sunlight, growth and artificial sunlight

Suspension typei

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