Ans: A. Animals in the polar region possess thick fur and skin, to protect themselves from the extremely cold climatic conditions. Due to the cold climate, this region suffers from limited natural vegetation.
B. Tropical deciduous forests are found in major parts of India, Northern part of Australia and America. These areas experience seasonal changes, and thus the tropical deciduous trees shed their leaves in the dry season for saving water.
C. The thickness and type of vegetation changes from place to place, because of the change in climatic condition, landform, soil, temperature, and moisture. Depending on these factors, different types of plants and animals can survive in different types of vegetation.