How did the ozone layer form?

Answer 1

The process, in proper terms is called ozone depletion.

At high altitudes, UV (ultra-violet light) would strike a chlorofluorocarbon (CFC) molecule, freeing a chlorine radical (Cl).

This chlorine radical would collide with an ozone (#O_3#) molecule, "robbing" it of an oxygen atom, and also forms oxygen gas (#O_2#).

When another oxygen radical strikes the formed molecule, which is a #Cl O# molecule, it frees the chlorine radical to "attack" other ozone molecules.

That's how it works.

P.S. : For further reading, you might want to watch a video my classmates did at school:

It might be useful.......

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Answer 2

The proposed mechanism by which ozone is created is usually called the "Chapman Mechanism'.

The Chapman mechanism was published around the 1930s. This mechanism came under scrutiny later in the twentieth century because of the growth of the hypothesis that chlorofluorocarbons react with ozone in the manner described, reducing the concentration of ozone at high level, a hypothesis that depended critically on the validity of the Chapman mechanism.

The main focus of the scrutiny is the absence of direct experimental evidence, but there is also a theoretical objection is that ultra-violet cannot break the covalent bond (at least not in the direct manner proposed by Chapman). Additionally at the very low pressures and temperatures there are other highly unstable loose structures of molecules that can form and have significant lifetimes and absorption properties.

The hypothesis that chlorofluorocarbons "destroy ozone molecules in the stratosphere" is still open to investigation, despite political decisions based on the assumption that it is true.

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Answer 3

The ozone layer formed through the accumulation of ozone molecules in the Earth's stratosphere. These molecules are created primarily through the interaction of ultraviolet (UV) radiation from the sun with oxygen molecules (O2) in the atmosphere. UV radiation splits oxygen molecules into two individual oxygen atoms, which can then combine with other oxygen molecules to form ozone (O3). This process, known as the ozone-oxygen cycle, is responsible for the formation and maintenance of the ozone layer, which plays a crucial role in protecting life on Earth by absorbing and filtering harmful UV radiation from the sun.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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