What characteristics does a polar bear possess for:
(i) Protecting them from predators?
(ii) Protecting them from extreme cold?
(iii) Avoiding getting over heated?

How is the mean temperature of a given month determined?

Rohan went to the desert of Rajasthan with his freinds. He saw an animal. It had a hump. Its feet had large soles. He wondered about this animal. He found that these were adaptations of that animal which helped it to survive in very hot and dry climate of the desert. Answer the following questions on the basis of the observations seen by Rohan.
(a) Name the animal Rohan observed in the desert of Rajasthan?
(b) What role does this hump has in this animal?
(c) Why do it has large soles?
(d) Can you give same more adaptations of this animal which help it to survive in desert?
(e) What values do you observe in Rohan?

In a class, the teacher was explaining a concept from weather and climate chapter. Anand got confused and slowly asked his teacher to repeat again. She smiled and started again. In equatorial belt the climate is hot and wet. It has evergreen rainforest and variety of plants. Similarly the vegetation of tropical region also has variations. The forest located between two tropics is called tropical forest. Desert shows arid region and only xerophytes are observed. These plants show specific modification for their survival in this arid region.
(a) Which type of forest is formed in equatorial region?
(b) What are the variation in vegetation seen in tropical forest?
(c) Give some adaptations of plants that are formed in desert.
(d) Some places conifers are seen. What are these places?
(e) What values do we observe in the teacher and Anand?

The following graph shows the change in temperature. Answer according to the reading of graph.
(a) Draw a table and fill the temperature change of each day.
(b) Which day show the highest temperature?
(c) Which day shows the minimum temperature?

How elephant is adopted to the conditions of tropical rainforest?

What is the role of sun for controlling the weather?

Describe the various adaptations of penguin and their advantages.

What are the various adaptations of polar bear and their advantages to the bear?

Rohit's maternal aunt lives in western India, i.e., Jodhpur. One summer evening Rohit had a talk to his cousin brother Guddu during which they talked regarding weather also. Though it was summer but Rohit's family enjoyed a better climate at north-east India i.e., Shillong at that time. Guddu told it is extreme hot at Jodhpur and temperature rises upto 45°C.
On this situation answer the following questions:
(i) What is weather and climate?
(ii) Why is there a variation of weather in two opposite parts of India, though climate was summer?
(iii) What are the primary factors that determine the weather changes?
(iv) Was Rohit missing the nice weather at Shillong ? Give your own opinion.