Question

Trees at seashore do not have annual rings because

• A. There is climatic variation
• B. There is no marked climatic variation
• C. There is enough moisture in the atmosphere
• D. Soil is sandy

Answer 1

Answer: (B)

There is no marked climatic variation

More distinct annual rings are formed in that regions where climatic variations are sharp. More distinct annual rings are formed in temperate plants. Distinct annual rings are not formed in tropical plants. Distinct annual rings are not formed in India except, Himalayan regions. Least distinct annual rings are formed in seashore regions because the climate remains same throughout the year. More clear annual rings are formed in deciduous plants as compared to evergreen plants. In deserts, annual rings are less distinct. Annual rings are bands of secondary xylem and xylem rays. Sometimes drought conditions prevail during the middle of a growing season resulting in the formation of more than one annual ring. These are called as pseudo-annual rings.

Therefore, the correct answer is option B.