Activity 13.1 Let us explore. Observe the features of the Earth as shown in fig. Class 9

Activity 13.1 Let us explore. Observe the features of the Earth as shown in fig. Class 9

Activity 13.1 Let us explore

Question 1.

Observe the features of the Earth as shown in fig. Identify and circle one example representing each of the geosphere, hydrosphere, cryosphere, atmosphere, and biosphere. Class 9

Answer:

The image shows several features of the Earth's surface simultaneously - snow-covered peaks (cryosphere), a lake (hydrosphere), the surrounding air (atmosphere), green pasture with sheep (biosphere), and rocky landforms (geosphere).

Question 2.

How does snow (cryosphere) eventually become part of the lake (hydrosphere)? Class 9

Answer:

Snow from the mountains (cryosphere) melts due to solar heating and flows downhill as meltwater, eventually entering the lake (hydrosphere).

Question 3.

If there is less snowfall during winters for a few years, how would this affect the lake's level and the grass available for the sheep? Class 9

Answer:

If snowfall decreases for several years, less meltwater reaches the lake, causing the lake level to fall. This results in less water available to support grass growth, which directly affects the sheep (biosphere).

Question 4.

Discuss with your classmates and write down how all the spheres are interconnected, and how a disturbance in one can lead to changes in others. Class 9

Answer:

All spheres are interconnected - a change in one sphere triggers a chain of responses in the others, demonstrating that the Earth functions as one integrated system.