What percent of the Earth's water is freshwater?
What property of water results in lakes that are cool during the summer, even though the air is hot?
Which sphere includes the continental plates, the ocean floor, all the rocks on the surface, and all of the sand in the deserts?
When plants draw nutrients from the soil, the interaction is between which two spheres?
Which property of water describes it's bent shape and uneven charge over the water molecule?