What is a conushon?

What radiation do ordinary ovens use? What factor caused these changes? Some scientists theorize that continental movements may cause climate changes by? German scientists invented the 'royal disease'? If the pressure in a steam boiler 3.6 bar what is the temperature of the steam? What is an empty space that contains no matter that light can travel through? How many feet is 2700 meters? How do you keep toilet bowl clean without scrubbing? The fundamental density is the ratio of the mass of a substance to its volume this is known as what? What is a turtle with black spots on the bottom of the shell? What does an idependent variable mean in science? What is a good replacement for the word because? How many deadly earthquakes happen every year? What is 20 degress celsius in degrees Fahrenheit? What are ways that humans contaminate water sources? What is the .1 germ that disinfectants don't kill? What is one third of 24.6 kilometers? What are all the stages of osmosis? Why do people where mehndi patterns? What were the advantages and disadvantages of the first magnifying glass?