What do bacteria elephants and plants have in common

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

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

How much energy is required to vaporize 2 kg of copper? a 4730 kj b 207kj c 9460 kj d 414kj