Which of the following statements is/are correct with reference to the Bogs?

Which of the following statements is/are correct with reference to the Bogs?

A. A bog is a freshwater wetland of soft, spongy ground consisting mainly of partially decayed plant

B. They are formed in northern climates, and take thousands of years to develop.

C. They can act as carbon sinks.

D. All of these

Explanation:

More than three centuries after it disappeared from Ireland, the common crane has returned to the island nation. A bird that is part of its folklore and was a popular pet during medieval times. A bog is a freshwater wetland of soft, spongy ground consisting mainly of partially decayed plant. Bogs (also called quagmires) are soft, spongy wetlands that accumulate peat– a fossil fuel that is used for heating homes and businesses in northern Europe. They are formed in northern climates, and take thousands of years to develop. Bogs also act as carbon sinks, sequestering around 200 million tons of carbon from the environment in Siberia and Scandinavia.