Which term refers to the process by which individuals that are better adapted to their environment are more likely to survive and reproduce?

a.

natural selection

b.

overproduction

c.

competition

d.

variation

How many values of ml are possible for an electron with orbital quantum number l = 2?

How many covalent bonds does hydrogen form if each of its unpaired electrons participate in one bond?

Why does liquid bromine react slowly as compared to bromine vapor

What is the volume of 53.0g of nitrogen dioxide gas at STP? Answer in units of L.

What percentage of Earth's water can be found in soil

6. Which of the following statements correctly describes what happens to the diaphragm during an inhalation, when the lungs inflate? O A. The diaphragm returns to its resting state. O B. The diaphragm contracts and flattens. O C.

A column is filled with four different liquids of different densities. A red liquid, a blue liquid, a green liquid, and a purple liquid are all added into the column. This chart shows the densities of the liquids.

Metals are used in many products because of the characteristic properties that most metals have. Which product requires the high luster of metals in order to work?

Sodium is a silvery-white metal that reacts with chlorine gas, which is a yellow-greenish gas that is toxic. The reaction gives off a lot of heat.

Which of the following chemical reactions is an oxidation-reduction reaction? Answer WO3 + 3H2 W + 3H2O KNO3 + LiCl LiNO3 + KCl CaSO4 + 2NaCl Na2SO4 + CaCl2 Mg (NO3) 2 + 2HBr MgBr2 + 2HNO3 According to the collision theory and model created to