How much kms of coastline does world have?

Is porencephaly cycts a dangerous problem? What is a Pleistocene glacier? Why was continental drift not accepted by the scientific community at large? What is at 0 degrees latitude and 105 degrees east longitude? What is the record high and low temperatures for Harrisburg PA? Is rubber an amorphous? What does netons first law of motion state? How can you describe the molecule CO2 in terms of polarity? What is the function of manganese dioxide in dry cell? What part of seedless vascular plants contain vascular tissue? What does vaping do to your body? How does nature of solute and solvent affects solubility? What chloroflorocarbon compounds cause ozone depletion? Can you use the energy produced by nuclear fusion for something? How limit and boundary alike? What role do the kidney played in the excretory system? How would you use the spectrum of a star to estimate its distance? What are two radioactive isotopes that are used to irradiate food? How is amber jewelry made commonly? When brought into an oxygen rich atmosphere steel will burn at what temperature?