What are some non examples of hierarchy?

What material would you stir boiling water with? Why are mosses usually found in moist areas? What is the size of a typical granule or convection cell seen in the photosphere? Why would gases diffuse faster on a warm day than on a cold day? What advances were made in the math and science during the renaissance? What must be true for a hypothesis to become widely accepted by scientist? How many liters equal 28 miles? What is the best project to do for the science fair project? What was the philosophical movement that emphasized science as a source of truth? Who discovered actinium? What is the point called when a gas changes to a liquid? What is a scientific text? Which statements about collaborative decision making are true? What are the three types of agency principals? What is the biological function of the fluid mosaic model of plasma membrane? Is any hypothesis that is not scientific necessarily unreasonable? What type of mercury glass thermometer ranges from 100 to 600? For this statement which could be a hidden variable? Will the temperature of a gas increase or decrease or remain the same if the volume is decreased and the pressure is increased? Convert 42 in into feet?