The Qing and xia were two ancient dynasties

Many areas surrounding the caspian sea contain important a. rare minerals b. forestry resources c. gold and silver mines d. oil and natural gas fields

A2 cm object is 10 cm from a convex lens that has a focal length of 4.4 cm, the image is 8cm from the lensz the height of the image, to the tenths place is

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.