How do you take earthwork quantity?

Why do covalent molecules have no charge? Where do convection currents flow in Earth? What should you do with a rag that has been used to wipe up spilled gasoline? What is the Old English and Germanic word Earth was named after? What happens to sodium metal when it is exposed to air? Why do exactly three calcium ions bond with exactly two nitride ions? What happens when you mix clay and sand? Which is the correct formula for the compound made when aqueous solutions containing a dissolved magnesium compound and a dissolved chloride compound are mixed? How many motions does the moon have? How do you separate mixture of copper carbonate and iron sulfate? What are the techniques for constructing houses in the areas of heavy rainfall? Is ammonia a hydrogen bond? What are some debating topics for summer being better than winter? How do greenhouse gases kill grass? Where can you get research on tornadoes? How does the rate of cooling influence crystal size of igneous rocks and how does that help you to distinguish between intrusive and extrusive igneous rocks? What is 40 degrees below celsius in Fahrenheit? What does actinium do if you eat it? What causes clay soil to be red? Where was the eroded material from the Canadian Shield deposited and what did this material become?

How do you take earthwork quantity?