Well what is the magnification in order to figure out how tall the letter e is in the microscope. Right!
D is the correct answer i think.
The correct answer is A. Petroleum is not a raw material for the production of biofuels. From the name itself, biofuels are obtained from biomass. Biomass are organic materials for example are the choices given in B, C and D.
One type of atom, such as hydrogen is called an element. An element is a pure substance, made up of only one type of atom. You can find the elements on the periodic table of elements, where they are listed.
Answer:
the flow in systems besides the flow.
Explanation: