Diversity of organisms is important for sustaining the biosphere. The document discusses how different abiotic factors like sunlight, air, soil and water are essential for photosynthesis, breathing, cultivation and other physiological activities. It also mentions the food web which shows how different organisms depend on each other for food.

1. Diversity for sustenance

2. DIVERSITY OF ORGANISMS

3. BIOSPHERE

4. ECOLOGY

6. ABIOTIC
FACTORS
SUNLIGHT
(Photosynthesis)
AIR
(Breathing)
SOIL
(Cultivation)
WATER
(For the smooth
function of
physiological
activities)

8. FOOD WEB