Order these star structures from smallest to largest: cluster, galaxy, local group, and supercluster. a. cluster, supercluster, galaxy, local group b. galaxy, local group, cluster, supercluster c. local group, cluster, supercluster, galaxy d. local group, galaxy, cluster, supercluster

Which equation is used to calculate the magnetic force on a charge moving in a magnetic field

Lumps of iron and manganese ore called can be harvested from the seafloor near underwater volcanoes.

Paleontologists have found plant fossils deep within the layers of the north polar region. these leaf fossils have been labeled as to the rock layers they were found in, with the lower numbers being layers close to the earth's surface and higher numbers representing deeper layers. according to the numbers of these four leaf fossils, what might you infer?