Correct answer choice is :
C) A product of a reaction between nitrogen oxides and volatile organic compounds present in various emissions that can irritate respiratory organs
Explanation:
The ozone layer is a deep layer in the stratosphere, surrounding the Earth, that has huge numbers of ozone in it. Interestingly, it is also this ultraviolet radiation that produces the ozone in the first place. Ozone is a particular kind of oxygen, made up of three oxygen atoms rather than the normal two oxygen atoms. This real sunscreen, identified as Earth's ozone layer, consumes and prevents the bulk of the sun's UV radiation. Within days of the ozone layer's disappearance, many plants would die.
Answer:
The heart is made of three layers of tissue. Endocardium, the thin inner lining of the heart chambers that also forms the surface of the valves. Myocardium, the thick middle layer of muscle that allows your heart chambers to contract and relax to pump blood to your body.
Explanation:
Answer:
South Africa
Explanation:
7.7 Million people with HIV in South Africa
Answer:
Portion is how much food you choose to eat at one time, whether in a restaurant, from a package or in your own kitchen. A portion is 100 percent under our control. Many foods that come as a single portion actually contain multiple servings. Serving Size is the amount of food listed on a product's Nutrition Facts label.
