Which of the following energy sources does not require waste disposal?
a. geothermal
b. biomass
c. nuclear
d. coal

How can you keep track of variables in a science experiment?

Which conditions need to be in balance for cells to function? check all that apply. blood sugar food intake body water body temperature body mass

Cold case files recently began re-investigating an old murder case. the murder took place in the park; a young man, james, was hit over the head with a brick and killed. police suspected the jealous former boyfriend of james' wife, karen. whoever killed james may have washed their hands in a near-by bird bath as detectives found blood in the bird bath. since the murder took place before dna fingerprinting was available, the suspected killer, ronnie, went free. detectives are now reviewing the blood evidence using dna fingerprinting. based on the dna fingerprints of all possible suspects, who is james' killer?