One of the following regions has the world's largest tropical peatland, which holds about three years worth of global carbon emissions from fossil fuels; and the possible destruction of which can exert detrimental effect on the global climate. Which one of the following denotes that region?

One of the following regions has the world's largest tropical…

Answer

(a) Amazon Basin: Amazon has vast rainforests and some peat areas, but it is not identified as the world’s largest tropical peatland. Verdict: Incorrect.
(b) Congo Basin: The Cuvette Centrale in the Congo Basin is recognized as the world’s largest tropical peatland, storing carbon equal to about three years of global fossil-fuel emissions. Verdict: Correct.
(c) Kikon Basin: This is not known in standard geography/environment references as the region described in the question. Verdict: Incorrect.
(d) Rio de la Plata Basin: This is a major South American river basin, but not the location of the world’s largest tropical peatland. Verdict: Incorrect.