<span>The
mass of an atom comes from the protons and neutrons that are found in the
nucleus. The number of protons is the atomic number of an element. To find the
number of neutrons, subtract the atomic number from the mass of an atom. So the number of neutrons are 20 (mass number) - 5 (atomic number) = 15 neutrons.</span>
Answer: Direct sunlight is more concentrated heat, which tends to be warmer but also covers a smaller surface area. During the winter months, the Sun is lower in the sky and its rays strike the Earth at an oblique angle, otherwise known as indirect sunlight.
Explanation:
Answer:
Reverse Osmosis.
Explanation:
This is the mechanisms of water purification for drinking water which is droven by the chenical potential of the solvent .
It involves the use of partiaiy permeable membrane to allow ions , water molecules ,solvent molecules to pass through during purification
A pertial permiable menenrane in this prurifiction process is the membrane that allow only water molecules, ions and restricted other unwanted chemical contaminants from passing through it.
