What Percentage Of Ozone Is Contained In The Stratosphere

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What Percentage Of Ozone Is Contained In The Stratosphere?

90%

What percentage of ozone is contained in the stratosphere a 10?

Approximately 90 percent of the atmosphere’s ozone occurs in the stratosphere the region extending from 10–18 km (6–11 miles) to approximately 50 km (about 30 miles) above Earth’s surface.

What is the percentage of ozone layer?

The total mass of ozone in the atmosphere is about 3 billion metric tons. That may seem like a lot but it is only 0.00006 percent of the atmosphere. The peak concentration of ozone occurs at an altitude of roughly 32 kilometers (20 miles) above the surface of the Earth.

What is the maximum concentration of ozone in stratosphere?

The maximum ozone concentration is between 20 and 25 kilometers (about 12 to 15 miles) above the surface. The layer of maximum ozone concentration in the stratosphere is referred to as the ozone layer. The altitude of the ozone layer varies with latitude.

Does the stratosphere contain ozone?

Most atmospheric ozone is concentrated in a layer in the stratosphere about 9 to 18 miles (15 to 30 km) above the Earth’s surface (see the figure below). Ozone is a molecule that contains three oxygen atoms. At any given time ozone molecules are constantly formed and destroyed in the stratosphere.

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How is ozone produced in the stratosphere?

Stratospheric ozone is formed naturally through the interaction of solar ultraviolet (UV) radiation with molecular oxygen (O2). The “ozone layer ” approximately 6 through 30 miles above the Earth’s surface reduces the amount of harmful UV radiation reaching the Earth’s surface.

What percentage of ozone is contained in the stratosphere A 10 B 50 C 80?

Most of Earth’s ozone resides in the stratosphere the layer of the atmosphere that is more than 10 kilometers (6 miles) above the surface. About 90% of atmospheric ozone is contained in the stratospheric “ozone layer” which shields Earth’s surface from harmful ultraviolet radiation emitted by the Sun.

What is Antarctic ozone hole?

What we call the “ozone hole” is a thinning of the ozone layer in the stratosphere above Antarctica that develops every September. Chemically active forms of chlorine and bromine—derived from human-produced compounds—are released into the stratosphere during reactions on high-altitude polar clouds.

Which layer is just above the stratosphere?

the mesosphere

The region above the stratosphere is called the mesosphere.

What sphere does ozone belong?

Ozone belongs to (a) Atmosphere.

The layer of atmosphere is classified as Troposphere Stratosphere Mesosphere Thermosphere and exosphere. Each layer has unique advantages and functions. The stratosphere layer of atmosphere has ozone layer.

How is the concentration of ozone in the stratosphere maintained?

The concentration of ozone in the atmosphere is maintained by a balance between formation and decomposition reactions. 2. The molecule M is mostly N2 or O2. The ozone molecule is prevented from decomposing by transferring excess energy to the molecule M.

Why is ozone good in the stratosphere?

Stratospheric ozone is “good” because it protects living things from ultraviolet radiation from the sun. … Called stratospheric ozone good ozone occurs naturally in the upper atmosphere where it forms a protective layer that shields us from the sun’s harmful ultraviolet rays.

What is highest concentration in ozone layer?

Most ozone (about 90%) is found in the stratosphere which begins about 10–16 kilometers (6–10 miles) above Earth’s surface and extends up to about 50 kilo- meters (31 miles) altitude. The stratospheric region with the highest ozone concentration is commonly known as the “ozone layer” (see Figure Q1-2).

How many ozone layer are there on Earth?

Ozone molecules (O3) have three oxygen atoms. Ozone is found in two different layers in Earth’s atmosphere.

What is the average concentration of ozone in the ozone layer of the atmosphere *?

1. What is the average concentration of ozone in the ozone layer of the atmosphere? Explanation: The concentration of ozone is about 10 ppm in the ozone layer and only 0.3 ppm in the entire atmosphere.

How is ozone formed in the stratosphere quizlet?

Ozone is formed in the stratosphere by the reaction of ultraviolet radiation striking an oxygen molecule. This results in the oxygen molecule splitting apart and forming atomic oxygen (O2 + hv = O + O). … This atomic chlorine then reacts with the ozone in the stratosphere to produce chlorine monoxide (ClO).

How is ozone produced in the air?

Ozone is formed when heat and sunlight cause chemical reactions between oxides of nitrogen (NOX ) and Volatile Organic Compounds (VOC) which are also known as Hydrocarbons. This reaction can occur both near the ground and high in the atmosphere.

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How is ozone formed Class 10?

CBSE NCERT Notes Class 10 Biology Our Environment. Ozone is a molecule formed by three atoms of oxygen. … The UV radiations split apart some molecular oxygen (O2) into free oxygen (O) atoms which then combine with the molecular oxygen (O2) to form ozone (O3).

Where is over 95 of incoming ultraviolet radiation absorbed in the stratosphere?

In particular most of the atmosphere’s ozone resides within the stratosphere. The ozone layer absorbs much of the incoming solar ultraviolet radiation (UVR) and thus offers substan- tial protection from this radiation to all organisms living at or near to Earth’s surface.

How can a small amount of chlorofluorocarbons destroy a large amount of ozone?

Once in the atmosphere CFCs drift slowly upward to the stratosphere where they are broken up by ultraviolet radiation releasing chlorine atoms which are able to destroy ozone molecules.

Where are chlorofluorocarbons found?

Chlorofluorocarbons (CFCs) are anthropogenic compounds that have been released into the atmosphere since the 1930s in various applications such as in air-conditioning refrigeration blowing agents in foams insulations and packing materials propellants in aerosol cans and as solvents.

Has the Antarctic ozone hole closed?

The Antarctic ozone hole — one of the deepest largest gap in the ozone layer in the last 40 years — has closed according to World Meteorological Organization (WMO) January 6 2021. … The same meteorological factors also contributed to the record 2020 Arctic ozone hole which has also closed.

Why is ozone hole in Antarctica?

The Antarctic ozone hole is a thinning or depletion of ozone in the stratosphere over the Antarctic each spring. This damage occurs due to the presence of chlorine and bromine from ozone depleting substances in the stratosphere and the specific meteorological conditions over the Antarctic.

How does the hole in the ozone layer affect Antarctica?

The depletion of the ozone hole has also caused an overall cooling trend on the Antarctic continent this has masked to some extent the effects of warming temperatures particularly on the larger part of East Antarctica and areas away from the peninsula region.

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Can planes fly in the stratosphere?

Commercial jet aircraft fly in the lower stratosphere to avoid the turbulence which is common in the troposphere below. The stratosphere is very dry air there contains little water vapor. … Because of this jet aircraft and weather balloons reach their maximum operational altitudes within the stratosphere.

Do planes fly above the ozone layer?

Planes fly in the second layer of the atmosphere called the stratosphere. The stratosphere is the second layer of the atmosphere and the one where the ozone layer is formed and where the planes fly in.

How high up is the stratosphere?

around 31 miles

Stratosphere. The Stratosphere extends around 31 miles (50 km) down to anywhere from 4 to 12 miles (6 to 20 km) above the Earth’s surface. This layer holds 19 percent of the atmosphere’s gases but very little water vapor.

Which layer of the atmosphere contains the ozone layer?

the stratosphere

The ozone layer is the common term for the high concentration of ozone that is found in the stratosphere around 15–30km above the earth’s surface. It covers the entire planet and protects life on earth by absorbing harmful ultraviolet-B (UV-B) radiation from the sun.

What is ozone layer made of?

The ozone layer also called the stratosphere is composed of the ozone gas (90% of the total ozone in the atmosphere). The ozone has three oxygen atoms and it is the result of the action of Ultra Violet (UV) radiation on oxygen molecules composed of two oxygen atoms.

Do other planets have ozone layers?

Just like Earth has an ozone layer so do Venus and Mars. But ozone is also found on Venus and Mars where it is created by non-biological means. … On these planets ozone is formed when sunlight breaks up carbon dioxide molecules releasing oxygen atoms which can sometimes re-combine into ozone molecules.

E.4.1 Describe the formation and depletion of ozone in the stratosphere by natural processes.

6.2 Stratospheric ozone

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