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masya89 [10]
3 years ago
6

Explain how a small amount of chlorofluorocarbons can destroy a large amount of ozone.

Biology
2 answers:
lbvjy [14]3 years ago
4 0
Chlorofluorocarbons are more commonly known as CFCs. CFCs were once used as refrigerants, <span>propellants (in aerosol applications), and solvents. Once CFCs enter </span>the atmosphere, they slowly<span> rise to the stratosphere. Here, ultraviolet radiation causes the break up of CFCs into their individual chlorine atoms. The chlorine atoms cause the catalytic destruction of</span> ozone<span>. </span>
baherus [9]3 years ago
4 0

The chlorine in chlorofluorocarbons is broken from the molecule by ultraviolet radiation. The free chlorine then combines with an oxygen atom from ozone, leaving an oxygen molecule and forming chlorine monoxide. Free molecules of oxygen can displace the chlorine in chlorine monoxide, leaving chlorine free to break up another molecule of ozone. One chlorine atom can destroy up to 100,000 ozone molecules.

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8) What is the manipulated variable in this experiment?
Murrr4er [49]

Answer:

As the variables are not given, let us help with general explanation on manipulated variable.

Explanation:

A manipulated variable is an independent variable. In a scientific experiment, an independent variable can be described as a variable which can change naturally or which is changed by the researcher to check its effect on the dependent variable. The dependent variable is the variable which is under study and being tested.

For example, to check the difference in photosynthesis rate by light, the amount of light will be the independent variable and the rate of photosynthesis will be the dependent variable.

8 0
2 years ago
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masya89 [10]
Greater portions of the beach begin to appear during ebbing tides, until the maximum amount of beach is visible at low tide. They usually happens twice in a day. Beaches results from wave action by which waves or currents move sand or other loose sediments of which the beach is made as these particles are held in suspension.
7 0
2 years ago
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Oduvanchick [21]
I would say D and A are your answers :)
5 0
3 years ago
What situation is an example of artifical selection
ss7ja [257]

<u>Answer:</u>

An example situation of artificial selection is "More African elephants today naturally lack tusks compared to the elephant populations 100 years ago, because big game hunters sought elephants for ivory".

<u>Explanation:</u>

  • The process of breeding animals to acquire the desired characteristics by the external means other than natural selection and behavior of animal itself is called as artificial selection.
  • The first artificial selection was carried out by Darwin when he mated penguins that would have a higher chance of breeding.
  • The practice of artificial selection was existing in human civilization a long time ago.
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What type of diagram shows how energy moves in a eycosystem
Sloan [31]
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