How much kms of coastline does world have?

What is the difference between intermittent volcano and active volcano? Without oxygen from the air humans and other aerobes can die within minutes. What organelle of our eukaryotic cells is directly consuming that oxygen? Is A material is ductile conducts electricity and is magnetic metal or nonmetal? Where is iron naturally found? Is any country of Africa part of Europe? HOW DOES A DELAY IN CENTRIFUCATION AFFECT POTASSIUM? Is the outback a physical feature? Why does dehydration result in a raised red blood cell concentration? What do you get when you put alka seltzer and orange juice together? How powerful is 10 watts? What is the time difference between Toronto and Alberta? What happens to the buffer solution pH 7 when acid is added? What is the average winter and summer temperatures in Maryland? Can o positive blood accept b positive blood? If a mutation changed the DNA code from ctt to att would that cause a problem in the polypeptide chain? Do daughter cells have more chromosomes then parent cells? Where is the state of Odessa? Does 20 degrees south latitude run through Peru or Madagascar? What is the difference bw kwh and kw why we need to consider kwh reading than kw reading for power consumtions? How many inches in 1524 mm?