Which igneous rock is dark colored, cooled rapidly on Earth’s surface, and is composed

mainly of plagioclase feldspar, olivine, and pyroxene?

Obsidian 3) gabbro

Rhyolite 4) scoria

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

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 ?

Which of the following is an eon in the time scale? phanerozoic proterozoic archean all of the above