The answer is C and A (I think.)
Gl.
12.56 because you multiply the radius by 2 then multiply that by 3.14
Answer:
because of their daily growing population each country you mentioned is affected by population growth
A probe is a spacecraft that travels through space to collect science information. Probes send data back to Earth for scientists to study. Mercury, Venus, Mars, Jupiter, Moons of Mars, and Moons of Saturn.