Technology can have good and bad effects. What is a bad effect of spraying pesticides on crops with the use of airplanes?
A. It increases food production
B: it is sometimes sprayed too far from the crops
C. It is decreases the cost of spraying pesticides
D. It lowers the cost of food

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