The availability of phosphorus is different that that of carbon and nitrogen because it is found mostly in the atmosphere hydrosphere lithosphere biosphere

The atomic number, or number, is the described as the number of in the nucleus of an chemical element.

What if it is did darwin used to support his theory of evolution

The equation below shows a chemical reaction. a + b + heat —> c + d according to the law of conservation of energy, which statement is true? a. the reactants absorb heat because they have less energy than the products. b. the products release heat because they have more energy than the reactants. c. the reactants generate heat because they have more energy than the products. d. the products require heat to form because they have less energy than the reactants.