15 foods that are good for your heart. Eat fish high in omega-3s, such as salmon, tuna, mackerel, herring and trout. A handful of healthy nuts such as almonds or walnuts will satisfy your hunger and help your heart.
Written by Marcia Malory. Category: Atmosphere. The atmosphere, a thin shell of gases surrounding the Earth, is a very effective protective shield that reflects and absorbs harmful radiation and objects like meteorites.The atmosphere protects the Earth from receiving too much radiation from the Sun.ritten by Marcia Malory. Category: Atmosphere. The atmosphere, a thin shell of gases surrounding the Earth, is a very effective protective shield that reflects and absorbs harmful radiation and objects like meteorites.
Your lungsâ main purpose is to collect oxygen for your body to use and then to eliminate carbon dioxide. When you inhale fresh air, the oxygen enters the blood vessels that surround your alveoli, the site of gas exchange in the bronchioles of your lungs. The oxygen circulates in your body, gets used up, and carbon dioxide is the result.