Advertisements
Advertisements
प्रश्न
Explain the following with suitable examples.
What are the differences between the flow of matter and of energy in an ecosystem? Why?
उत्तर
| Energy flow in an ecosystem | Flow of Nutrients in an ecosystem |
| 1. The flow of energy in an ecosystem is unidirectional. | 1. The flow of nutrients in an ecosystem is cyclic. |
|
2. Energy is transferred from producers to consumers via one trophic level to the next. |
2. Primary consumers pass on nutrients from producers, while primary consumers pass on nutrients to secondary consumers. Only decomposers provide nutrients in a cyclical manner. |
| 3. Some part of the energy which is not utilized is thrown into the atmosphere. | 3. Nutrients are not destroyed in the ecosystem. |
APPEARS IN
संबंधित प्रश्न
Briefly describe three aspects of nutrient cycles.
What are the possible dangers of global warming?
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 |
Correct and rewrite the following statement and justify your correction.
The flow of nutrients in an ecosystem is considered to be a ‘one-way’ transport.
Give reason.
The flow of nutrients through an ecosystem is cyclic.
Give reason.
Equilibrium is necessary in the various bio-geo-chemical cycles.
What would you do to help maintain the equilibrium in the various bio-geo-chemical cycles? Explain in brief.
State the different types of bio-geochemical cycles and explain the importance of those cycles.
What are the two factors of biosphere?
Tropical grasslands are also known as ______.
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.
