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Ostrovityanka [42]
3 years ago
12

These are nontoxic, nonflammable chemicals containing atoms of carbon, chlorine, and fluorine that have created a hole in the oz

one
Question 1 options:

smog


acid rain


chlorofluorocarbons (CFCs)


EPA
Physics
2 answers:
Grace [21]3 years ago
6 0
<span>The correct answer is: Chlorofluorocarbons (CFCs)

Explanation:
In simple words, CFCs are the chemical compounds made up of the following three elements:
1. Carbon
2. Chlorine
3. Fluorine

When CFCs compounds reach the upper atmosphere, the ultraviolet rays coming from the Sun break those compounds into individual elements, which then react with one of the oxygen atom of the ozone (O3) to form new compounds like chlorine monoxides. That way the ozone molecules get destroyed, resulting into the ozone depletion. Hence, the correct answer is Chlorofluorocarbons (CFCs).</span>
kicyunya [14]3 years ago
6 0

Answer:

The correct answer is option C,  

chlorofluorocarbons (CFCs

Explanation:

The chlorofluorocarbons (CFCs) were being used in air conditioners, aerosol spray cans, and industrial cleaning products since 1960s. These CFCs are inflammable, but once they are into atmosphere they move to the upper stratosphere and there they enter into a never ending chain reaction thereby releasing chlorine . The free chlorine react with ozone and destroy its molecule.

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3 years ago
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Lyrx [107]

Answer:

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In the Bohr model of the atom, an electron in an orbit has a fixed ____.
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3 years ago
An elevator has a mass of 1000 Kg. What force is needed to accelerate it upward at a rate of 2 m/s/s?
zubka84 [21]

The force needed to accelerate an elevator upward at a rate of 2 m / s^{2} is 2000 N or 2 kN.

<u>Explanation: </u>

As per Newton's second law of motion, an object's acceleration is directly proportional to the external unbalanced force acting on it and inversely proportional to the mass of the object.

As the object given here is an elevator with mass 1000 kg and the acceleration is given as 2 m / s^{2}, the force needed to accelerate it can be obtained by taking the product of mass and acceleration.

                  \text {Force}=\text {Mass} \times \text {Acceleration}

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