Rachel investigates an object she found in a lake. She determines that the object is made of many materials, and it looks like it was formed over hundreds of years.
Did Rachel find a mineral OR a rock? Explain. *

Which statement best explains the relationship between an area is geography and the temperature of its surface water

Word equation for k(s)+h2o(l) yield koh(aq) + h2(g)

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion