Which colorless and odorless gas, produced by radioactive decay of uranium-238, is considered to be a form of pollution?

a. hydrogen
b. radon
c. oxygen
d. boron

Which is the largest ethnic group in guinea? malinkéfula (correct)kissisoussouand another question. guinea has always had a stable government led by elected presidents.truefalse (correct)

Based on what you know about the location of the earth in relation to the sun, why is this called the goldilocks zone in other galaxies?

Alow-pressure belt means the air is cold and dry warm and rising cold and sinking warm and moist