Forests are called the ‘lungs of the Earth’ because their vast plant canopies absorb enormous volumes of atmospheric carbon dioxide for photosynthesis and release life-sustaining oxygen, regulating planetary air quality and maintaining global atmospheric balance. Class 9 Social Science Part 2 ...
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From Bihar and surrounding eastern forest belts, notable GI-tagged agricultural and wild produce include Katarni rice, Magahi Paan, Shahi Litchi of Muzaffarpur, Mithila Makhana and traditional handloom forest tussar silk textiles. Class 9 Social Science Part 2 All Chapters Solutions Class ...
Local organisms construct functional shelters: humans build concrete homes, birds weave canopy nests and termites raise earthen mounds. Plants provide shade, nesting material and food, forming an integrated local micro-ecosystem across urban and rural settlements. Cbse Class 9 Social Science Part ...
Polar tundra has permafrost preventing deep roots, allowing only mosses. The subtropical Himalayas have deeper, unfrozen soils supporting conifers. Tundra fauna include polar bears and reindeer; the Himalayas feature snow leopards, red pandas and Himalayan monals. CBSE Class 9 Social Science ...
Preserving biodiversity maintains ecological stability, protects genetic resources and sustains vital ecosystem services. We can conserve lifeforms by halting habitat destruction, reducing pollution, avoiding wildlife trade and supporting protected national parks and reserves. CBSE Class 9 Social Science part 2 Chapter ...