Which best describes the nucleus of an atom? a. it is where the electrons and protons are located. b. it is the negatively charged part of the atomc. it is the part f the atom with the greatest massd. it is where all of the particles of the atom are located

The united states produces an average of 429 billion pounds of food annually. about 133 billion pounds of that food ends up as waste.the percentage of food that the united states wastes each year is %.

Zoo geographic regions are characterized by the presence of specific groups of animals these regions are determined by the taxonomic or phylogenetic relationships of animals. the map shows the zoogeographic regions proposed by the naturalist alfred russel wallace in 1876. the similarities of organisms in which two areas numbered above provide the best evidence for common ancestry between the organisms in both locations ?

Describe the layers of the suns atmosphere?