What's forms a belt between mars and jupiter

At which location in earth’s interior does the top density continue to increase as thickness decreases?

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 ?

Resperation is a way to release carbon back into the atmosphere