Question

exam lesson name: introduction to design technology
exam number: 700700rr

1. exam guidelines
2. exam instructions

question 4 of 20 :
select the best answer to the question.

1. which of the following is a result of the montreal protocol and its implementation?

a. fewer aerosol cans are now produced.
b. the global carbon footprint increased
c. chlorofluorocarbons are now put only into aerosol cans.
d. chlorofluorocarbons are now used as refrigerants.
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Explanation:

The Montreal Protocol aimed to phase out substances that deplete the ozone layer, like chlorofluorocarbons (CFCs). Aerosol cans previously used CFCs, so with the protocol, their production (especially those using ozone - depleting substances) decreased. Option B is incorrect as the protocol is about ozone - depleting substances, not carbon footprint. Option C is wrong as CFCs are phased out, not restricted to aerosol cans. Option D is incorrect as CFCs are no longer used as refrigerants (they are phased out) due to the protocol. So the correct answer is A.

Answer:

A. Fewer aerosol cans are now produced