All questions of How Nature Works in Harmony for Class 8 Exam

Understanding Plant Interactions with Abiotic Components
Plants interact with abiotic components in their environment in several essential ways. Among the options provided, the most accurate is that they require sunlight for photosynthesis.
Importance of Sunlight
- Photosynthesis Process:
- Plants utilize sunlight to convert carbon dioxide and water into glucose and oxygen.
- This process is fundamental for their growth and energy production.
- Energy Source:
- Sunlight is the primary energy source for plants, enabling them to produce their own food.
- Without sufficient sunlight, plants cannot perform photosynthesis effectively, leading to stunted growth or death.
Other Abiotic Factors
- Water:
- Water is crucial for plant survival as it aids in nutrient absorption and photosynthesis.
- Soil Nutrients:
- Nutrients from the soil, such as nitrogen and phosphorus, are vital for plant health and development.
- Temperature and Climate:
- Different plants thrive in various temperature ranges and climatic conditions, affecting their distribution and growth patterns.
Conclusion
In summary, while plants do interact with various abiotic components like water, soil, and air, they specifically require sunlight for photosynthesis, which is why option 'B' is the correct answer. This interaction highlights the vital role of abiotic factors in the life cycle and sustainability of plant species.