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प्रश्न
What are the two factors of biosphere?
उत्तर
The biosphere is the part of the earth where life exists. All resources of the biosphere can be grouped into two major categories namely:
- Biotic or living factors include plants, animals, and all other living organisms.
- Abiotic or non-living factors include all factors like temperature, pressure, water, soil, air, and sunlight which affect the ability of organisms to survive and reproduce.
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संबंधित प्रश्न
Briefly describe three aspects of nutrient cycles.
What is global warming? Give its effects.
Complete the following table (Carefully study the carbon, oxygen, and nitrogen cycles).
| Bio-geo-chemical cycles | Biotic processes | Abiotic processes |
| 1. Carbon cycle | ||
| 2. Oxygen cycle | ||
| 3. Nitrogen cycle |
Give reason.
The flow of nutrients through an ecosystem is cyclic.
What would you do to help maintain the equilibrium in the various bio-geo-chemical cycles? Explain in brief.
Explain the following with suitable examples.
What are the differences between the flow of matter and of energy in an ecosystem? Why?
State the different types of bio-geochemical cycles and explain the importance of those cycles.
Oxygen combines with iron found in the rocks to form ____.
During photosynthesis, carbon dioxide combines with water in the presence of sunlight to form ______.
What are bio-geochemical cycles? Explain how nitrogen is fixed in the atmosphere.
