Which of the following describes a biotic factor of an ecosystem interacting with an abiotic factor in the ecosystem? A. A child lying on the grass
B. A duck diving into a lake
C. A raindrop falling onto the ground
D. A puddle evaporating due to the heat

It is platinum in the market value

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

Both prokaryotic and eukaryotic cells have ribosomes and cell membranes

Gravitational force i believe