The circulation of the element Carbon among Earth's atmosphere, land, oceans, and organisms is called

All organisms contribute some water to the water cycle by conducting

The same agricultural practices are used in every country of the world. select the best answer from the choices provided t f

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .