Bacteria that produce vitamins are residents of what organ within the digestive system?

Does the sun release radiant energy?

When elements that form a mineral dissolve in hot water, they form a mixture called a(n) a)geode b)vein c)evaporation d)crystallization e)magma f)lava g)solution h)gem

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt