Which one is right pls help

What is the empirical formula of c6h18o3? ch3o c2h5o c2h6o c2h5o5

The biosphere of the earth is made up of what compound? organic or inorganic?

Which statement explains which thermometer is more appropriate to measure the temperature of a liquid at 43.6 degrees celsius a) thermometer a, because it measures temperature more accurately than thermometer b b) thermometer b, because it measures temperature more accurately than thermometer a c) thermometer a, because it measures temperature more precisely than thermometer b d) thermometer b, because it measures temperature more precisely than thermometer a