Question

Mohit performed an analysis of two different soil samples from two areas A and B. He recorded these results:

Soil Sample A: Lignin 40%, Sugar 10%, Chitin 45%, Nitrogen 5%

Soil Sample B: Lignin 5%, Sugar 35%, Chitin 15%, Nitrogen 45%

Which of these is true about their rate of decomposition in both the soil?

विकल्प

• Soil A has a slower rate of decomposition than Soil B.

• Soil A has a faster rate of decomposition than Soil B.

• Both have the same rate of decomposition.

• No decomposition occurs in A and B.

Answer 1

Soil A has a slower rate of decomposition than Soil B.

Explanation:

Sugar and materials rich in nitrogen break down more quickly than lignin and chitin, which are complicated and difficult to break down. Soil A resists breakdown because it contains more lignin (40%) and chitin (45%). Soil B breaks down more quickly because it has more sugar (35%), more nitrogen (45%), and less lignin (5%).