Question

Sea shore trees do not show annual rings because

• A. There is little climatic variations.
• B. They belong to monocots.
• C. There is enough moisture.
• D. Soil is sandy.

Answer 1

The correct option is A There is little climatic variations.

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 formation of more than one annual ring. These are called as pseudo annual rings. So, sea shore trees do not show annual rings because there is little climatic variations and not because, they belong to monocots, there is enough moisture or soil is sandy.
Therefore, the correct answer is option A.