What is a metpher?

What does the word dependent variable mean in science? Are all seven steps of the scientific method used in every scientific investigation? How does natural selection cause evolution to occur? How do you replace a gas meter? How does The combined volume of the billions and billions of hexagonal open spaces in the structures of ice crystals in a pieces of ice compare with the portion of ice that floats above the waterline? What happens when light strikes a opaque object? What is the hearing threshold of humans? Which university is best in UK to study MParm? What are the Characteristics of biosphere? A delicate plant embryo is protected by a? Can you light your farts on fire with a lighter? What are the ingredients in liquid hand soap? What contribution did brand make to science? What is the implication if you has a habit of drinking softdrinks? How can you tell if a spoon is silver? What would happen if you allowed the dialysis tubing to sit in the cup overnight? Are fruits and vegetables good conductors of electricity? What animals don't become fossils? Explain the designation compound light microscope? What is thomas edison contribution in the field of science and technology?