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प्रश्न
Answer the following question.
Mention four significant services that a healthy forest ecosystem provides.
उत्तर
Ecosystem services provided by healthy forest ecosystems are
- Purification of air.
- Maintenance of biodiversity.
- Provide wildlife habitat.
- A storage site for carbon. (v) Cycling of nutrients.
- Mitigate droughts and floods.
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संबंधित प्रश्न
Mention any 'two' ecological services forthe benefit of mankind
Discuss the role of healthy ecosystem services as a pre-requisite for a wide range of economic, environmental and aesthetic goods and services
Define the Standing crop
After a fire in a forest, the pioneer stage during secondary succession is ______.
Which of the following enzymes helps in fixing CO2 into malic acid in sorghum plant?
Seed dispersal in squirting cucumber occurs via ______.
Out of the total proposed cost of various ecosystem services, the cost of climate regulations and habitat for wildlife is ______.
Ecosystem is not accepted by which law of thermodynamics?
Based on the table given below, identify the type of natural selection taking place.
| Size of the seeds | % of germination |
| Small | 75% |
| Medium | 15% |
| Large | 75% |
Given below are the features of Seed A and Seed B. Study them carefully and answer the question that follows.
| SEED A | Papery endosperm, swollen cotyledon, perisperm develops from nucellus, suspensor, haustoria substitute endosperm. |
| SEED B | Swollen endosperm, papery cotyledons or absent, perisperm does not develop from nucellus, suspensor and haustoria do not substitute endosperm. |
Identify the type of Seed A and Seed B. Cite one example of each of Seed A and Seed B.
