D. Answer each of the following questions in few sentences.
1. Birds from polar region migrate during winters. Why?
2. Give differences between weather and climate of a place.
3. What is camouflage? Why is camouflage important for animals?
4. Mention four adaptations in camel to survive in a desert.
5. How does the tilt of axis of rotation of Earth affect its climate?
E. Answer each of the following questions in detail.
1. How do elephants living in the tropical rainforests adapt themselves?
2. What is weather forecasting? How is it done? Why are weather forecasts not always
accurate?
3. Describe the factors that affect the climate of a place.
4. Give the various adaptations in a polar bear to survive in the cold polar regions.
5. Describe the various elements that constitute the weather of a place.
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Answers
Answer:
1.The most common pattern is that birds migrate to the temperate or arctic Northern Hemisphere to breed in the summer and migrate south to warmer regions for the winter.
2.weather is only for short period or it can change from minute-to-minute, hour-to-hour, day-to-day, but whereas in climate it remains for a over time and space. this is for a long period of time season to season
3.Camouflage is an adaptation that helps an organism blend in with its surroundings. Blending in helps the animal avoid predators and increases its ability to survive.
4.Doubly thick skin.
water storing osmotic cells.
Thick bushy eye brows.
Nostrils which can be closed during desert storms.
5. This is the primary cause for the different seasons Earth experiences throughout the year, as well as the intensity of the seasons for higher latitudes.
Explanation:
1 . Birds migrate to move from areas of low or decreasing resources to areas of high or increasing resources. The two primary resources that they need are food and nesting locations.
2. Weather is reflects short terme conditions of an atmosphere while the climate is the average daily weather for an extended period of time at a certain location.
3. Camouflage is an adaptation that helps in organisms blend in with its surroundings.
It is important for animals because blending in helps the animals avoid predators and increases its ability to survive.
4. The four adaptations are
i) doubly thick skin
ii) water storing osmotic cells
iii) thick bushy eyebrows
iv) nostrils which can be closed during desert storms.
5. The axial tilt increases, the seasonal contrast increases so that winters are colder and summers are warmer in both hemispheres.
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