Give reasons.
(i) The animals in Polar region have thick fur and thick skin.
(ii) Tropical deciduous trees shed their leaves in the dry season.
(iii) The type and thickness of vegetation changes from place to place.
Consider the following statements: A. In the Tundra region, animals have thick fur and thick skin. B. Most of the animals in grasslands are herbivores. C. In tropical rain forests, many animals live on trees. Which of the following best explains these statements?