Which atom has the smallest atomic radius? cs k li fr

Which part of earth’s surface receives the most direct rays from the sun? a) equator b) ocean c) poles d) mountains

How does carbon monoxide pose the greatest threat to humans? a. it can be produced by wood fires. b. it can be produced by home furnaces. c. it is produced by acid rain. d. it is produced by modern automobiles.

Apound is approximately 0.45 kilogram. a persons weighs 87 kilograms. what is the persons’s weight, in pounds, when expressed to the correct number of significant figures