Which substances are regulated by the Kyoto Protocol?

i. argon
ii. carbon dioxide
iii. nitrogen
iv. nitrous oxide
v. sulfur hexafluoride

BlackTom题目解析

Question

Which substances are regulated by the Kyoto Protocol?

i. argon
ii. carbon dioxide
iii. nitrogen
iv. nitrous oxide
v. sulfur hexafluoride

BlackTom题目解析

BlackTom AI · Accepted Answer

Question restatement: Which substances are regulated by the Kyoto Protocol?

Breakdown of each listed item:

Option i (argon): Argon is a noble gas and inert; it is not a greenhouse gas and is not targeted for emissions reductions under the Kyoto Protocol. Therefore, this option is incorrect because argon is not among the regulated substances.

Option ii (carbon dioxide): Carbon dioxide is the principal greenhouse gas addressed by the Kyoto Protocol, especially from fossil fuel combustion and certain industrial processes. This makes ii a correct component of the regulated list.

Option iii (nitrogen): Molecular nitrogen (N2) is a major component of the atmosphere and is chemically inert under typical conditions; it is not a greenhouse gas and is not regulated by the Kyoto Protocol. Thus, iii is incorrect.

Option iv (nitrous oxide): Nitrous oxide (N2O) is a potent greenhouse gas and is explicitly included among the gases targeted by the Kyoto Protocol. Therefore, iv is correct.

Option v (sulfur hexafluoride): Sulfur hexafluoride (SF6) is a very potent greenhouse gas and is also regulated under the Kyoto Protocol. Hence, v is correct.

Synthesis: Assessing all options, the substances that are regulated according to the Kyoto Protocol are carbon dioxide (ii), nitrous oxide (iv), and sulfur hexafluoride (v). Argon (i) and nitrogen (iii) are not regulated greenhouse gases under the treaty. Therefore, the combination 'ii, iv, and v only' accurately reflects the regulated substances.

Which substances are regulated by the Kyoto Protocol? i. argon ii. carbon dioxide iii. nitrogen iv. nitrous oxide v. sulfur hexafluoride BlackTom题目解析单项选择题

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