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Is there a sentence with fast being used as an adjective? What does 7 indicate on the pH scale? Why is neutralisation not a redox reaction? What are the 4 main cells in your body? What precautions have been set up by NASA due to the Challenger incident? What animal kills and eats other animals? When is a recessive allel expressed in offspring? In Texas how many times did tornado come? Does carbon have a greater molar mass then chlorine? What is the color of lead sulphate? What would be the effect on the circulatory system if a person where to quit smoking? Why are the imperfect fungi imperfect? Which president signed the bill creating NASA? Is the big bang a form or example of free energy? The type of energy transferred by a wave in a medium is kinetic energy.? Can diamond scratch steel? Why Is The Snow Sparkly? What organ has a lining of mucus protecting it? How do you classify a virus? The semicircular canals and the two tiny sacs located behind them help maintain what?