What makes a greenhouse gas different than other gasses in the atmosphere? * Greenhouse gasses are always man-made.
Greenhouse gasses absorb heat radiating from the Earth's surface.
Greenhouse gasses are radioactive.
Greenhouse gasses have a green color when light shines through them.
Greenhouse gasses are poisonous to most life.

Whenever diploid populations are in hardy-weinberg equilibrium at a particular locus a) the allele's frequency should not change from one generation to the next, but its representation in homozygous and heterozygous genotypes may change. b) natural selection, gene flow, and genetic drift are acting equally to change an allele's frequency. c) this means that, at this locus, two alleles are present in equal proportions. d) the population itself is not evolving, but individuals within the population may be evolving.