Atom A and Atom B have the same number of protons and neutrons, but they do not have the same number of electrons. Which statement describes the atoms? The atoms have the same chemical symbol. The atoms have the same charge. The atoms have different atomic numbers. The atoms have different atomic masses.

List two limitations of natural selection

Check all that apply diatoms are marine algae that have a shell made of silica, what are some of the uses of the silica shell after the diatoms die? 1.the shells make up the diatomaceous earth used in filters 2.it can be used as an ingredient in abrasives 3.they are used in food products 4.the shells can be used in some insulating materials

Which of the following is a consequence of urban heat islands? increased precipitation downwind of the city? increased precipitation upwind of the city? decreased winds within the city? increased winds within the city?