what is biological magnificention ?
right the formula for ozone and how is it formed ?
what are covelent and ionic compounds ?
give an example of olfactory indicator ?
what is double displacement reaction ?
what are demerits of Mendeleev periodic table ?
mention any 2 uses of convex lens in our daily life ?
define 1 amphere .
differenciate between electric current and electric charge ?
what is arota ( life proseccess )
mein any two atmost important functions of heart ?
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Answers
Answer:
Ozone is a simple chemical compound that contains only oxygen atoms, and its effects depend on where in the atmosphere it occurs. In the upper stratosphere, it forms a protective shield against solar ultraviolet radiation, but near the ground, it's a pollutant that can cause respiratory ailments in humans and animals. The creation and destruction of stratospheric ozone depend primarily on natural processes, but near the ground, industrial processes are mostly responsible for its creation.An ozone molecule consists of three oxygen atoms (O3), whereas the stable form of oxygen that normally exists in the atmosphere consists of only two. When certain chemical processes make an extra oxygen atom available, the highly reactive atom binds readily with an oxygen molecule. Ozone is also highly reactive, and its oxidizing ability is second only to fluorine. It is useful as a deodorizing and bleaching agent as well as for killing germs and purifying water. It is a pale blue gas at room temperature, and its strong odor is reminiscent of a thunderstorm because lightning strikes produce ozone.Production of Stratospheric Ozone
Ultraviolet light from the sun reacts with oxygen molecules in the upper atmosphere to form the stratospheric ozone layer. When the energetic light strikes oxygen molecules, it breaks them into two separate oxygen atoms, and each of the highly reactive atoms bind with another oxygen molecule, resulting in the formation of two ozone molecules. These reactions occur most frequently over the tropics, where the sunlight is most intense. They are important because the ultraviolet radiation they absorb would otherwise reach the surface of the planet, where it would make it difficult for life to exist.
Production of Tropospheric Ozone
Because it is such a corrosive gas, ozone in the lower atmosphere is known as bad ozone, and a number of chemical reactions produce it. One of them occurs inside automobile engines, where oxygen and nitrogen gas combine to form nitric oxide. This gas reacts with oxygen to form nitrogen dioxide. On sunny, hot days, nitrogen dioxide breaks down again to release an oxygen atom, which in turn binds with an oxygen atom to form ozone. Emissions from factories and energy stations that burn fossil fuels also generate ozone through a similar process. Ozone also forms around high-voltage electrical equipment.
Ozone Pollution
Ozone occurs naturally in the troposphere, mainly due to the release of hydrocarbons from plants and soil that break down in sunlight to nitric acid and oxygen radicals. Natural levels are seldom high enough to cause problems for humans, but the extra ozone from industrial processes and automobiles can cause a number of them. The highly reactive gas damages forests and crops, damages living tissue and causes respiratory ailments in sensitive individuals. Ozone levels in the troposphere aren't constant -- they increase on hot sunny days in metropolitan and other areas of high industrial activity. Ozone is a primary component of smog.
Answer:
1) Biomagnification is the accumulation of a chemical by an organism from water and food exposure that results in a concentration that is greater than would have resulted from water exposure only and thus greater than expected from equilibrium.
2) Ozone is defined as a type of gas that's made from molecules consisting of three oxygen atoms. The chemical formula of ozone is O3.
3) Covalent or molecular compounds form when elements share electrons in a covalent bond to form molecules.
4) An Olfactory indicator is a substance whose smell varies depending on whether it is mixed with an acidic or basic solution.
5) A salt metathesis reaction, sometimes called a double replacement reaction, double displacement reaction, is a chemical process involving the exchange of bonds between two non-reacting chemical species which results in the creation of products with similar or identical bonding affiliations.
6) Increase in atomic mass was not regular while moving from one element to another. Hence, the number of elements yet to be discovered was not predictable. Later on, isotopes of elements were found which violated Mendeleev's periodic law.
7) Uses of convex lens are in daily life are as follows : 1) Convex lens is used in microscopes and magnifying glasses to subject all the light to a specific point. 2) Convex lens is used as a camera lens in cameras as they focus light for a clean picture.
8) practical terms, the ampere is a measure of the amount of electric charge passing a point in an electric circuit per unit time with 6.241 × 1018 electrons, or one coulomb per second constituting one ampere.
9) The most significant difference between the charge and the current is that the charge is the physical property of matter, whereas the current is the rate of flow of charges.
10) The aorta is the main artery that carries blood away from your heart to the rest of your body. After the blood leaves the heart through the aortic valve, it travels through the aorta, making a cane-shaped curve that connects with other major arteries to deliver oxygen-rich blood to the brain, muscles, and other cells
11) The four main functions of the heart are:
Pumping oxygenated blood to the other body parts.
Pumping hormones and other vital substances to different parts of the body.
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