Please help, test question. Will give brainliest! Give the 2 sources of heat in the troposphere absorb solar energy during the day.​

Hold on to his or her beliefs even if there is no evidence for those beliefs.

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