Rocks and Resources — True or FalseVersión en línea Quick true/false quiz about rocks and their uses. por May Suliman 1 Only one type of rock exists on Earth, so there is no variety in rock properties. Yes No 2 Rocks contain important materials: oil, natural gas, and metals like iron and aluminum. Yes No 3 Slate is a type of rock that can be split easily. Yes No 4 Slate cannot be used for roofing because it is too soft and breaks easily. Yes No 5 Different rocks are used for different things, depending on their properties. Yes No 6 Sand and gravel come from riverbeds. Yes No 7 Rocks for buildings and roads are taken from quarries. Yes No 8 Rocks are never found in mines; they are all located on the surface. Yes No 9 All rocks are formed only from minerals and never contain fossils. Yes No