Give the formula for the alkane containing 500 carbons.

Which statement is a reason to support population regulation? a) it is unethical for us to control birth control rates b) humans have the freedom to produce as many children as desired c) the gap between the rich and poor has been narrowing since 1960 d) billions more people on the earth will intensify many environmental and social problems

What material does not melt at any temperature

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?