What is the best metric unit for Length?

What can cause high low tides of an ocean? Which type of particle will settle to the bottom first? If there is a reduction in the number of suppliers for producing salt what happens to the supply? Why are mercury and venus scalding hot? How many people died in the Haleakala volcano eruption 1790? What size telescope do you need to see Saturn? What is heavy water in soda? These organism are found in class musci? What is the process of losing or gaining electrons? How does the cell theory show that Darwin's theory of evolution was incorrect? How many quarts of oil Honda xr650r? What is the real name of White Diamond? How many cintigrams are in 655 milligrams? Why cordaitales are unique among the gymnosperm? What is a unique mono-nucleotide of the RNA? Why do newly formed volcanic islands have a rich supply of minerals? What process would you use to separate trail mix? Is gumamela Avascular or non vascular? Could a robot live on Neptune? What is the colour of the flame produced when burning fuel in a poor supply of air?