How many naturally ocouring elements are found on the earth in significant quantities?

What is the point where the rock first breaks or moving an earthquake called? Why does wastage of food contribute to loss of energy and global warming? What is it called when Plant parts grow on or around things? What is the chemical reaction when you burn a candle inside a glass beaker? Which organisms are responsible for the majority of the net primary productivity in shallow marine waters? What are the particles speed and spacing in condensation? What is The boundary below which the ground is saturated with water.? Is too much algae bad? What is characteristic of ground source heating? What term is defined as the role an organism plays within have a community? The crab industry needs female crabs for growing more crabs What bacterium might be used to ensure development of female carbs and shrimp? How much salt should you use per square foot? What does neutrally buoyant mean? Is carbon monoxide harmful in fish? What are the uses of barfoed's reagent? Is water a mixture element or molecule? Why are the tropics that most diverse areas? What does the pH number mean? Where is the Devils Tower Natural History Association in Devils Tower Wyoming located? What are special proteins that transport oxygen called?