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प्रश्न
Explain the role of any three abiotic factors affecting the environment.
उत्तर
The abiotic factors of an ecosystem are temperature, water, light and soil.
i. Temperature:
- It is considered the most ecologically relevant environmental factor.
- Average temperature on land varies from subzero levels in polar areas and high altitudes, upto 50ºC in tropical deserts in summer.
ii. Water:
- Availability of water is an important factor affecting the organisms. The productivity and distribution of plants are also dependent on availability of water.
- Chemical composition, temperature and pH of the water are some important factors for the survival of aquatic organisms.
iii. Light:
- Sunlight is only source of energy for the entire ecosystem. Plants use light to perform photosynthesis.
- Many species of small plants (herbs and shrubs) growing on forest floor are adapted to perform photosynthesis optimally under very low light conditions because they are constantly overshadowed by tall trees.
संबंधित प्रश्न
Air, water, minerals, soil are ___________ factors of an ecosystem.
How is water a limiting factor in the deserts?
Explain, how do living organisms interact in an ecosystem.
Name two types of food chain.
The driving force for an ecosystem is
Which factor of an ecosystem includes plants, animals, and micro-organisms?
Distinguish between the following: Ectotherms and Endotherms.
Match the Columns.
| Column I | Column II | ||
| i. | Hibernation | a. | Birds in winter |
| ii. | Aestivation | b. | Polar bear in winter |
| iii. | Migration | c. | Some snails and fish in summer |
Read the following statements and select the correct option.
Statement I: Some snails and fish undergo hibernation to avoid summer heat.
Statement II: Polar bears undergo hibernation in winters as they are unable to migrate
Which of the following acids play an important role in pedogenesis?
Match the following:
| i. | Abiotic factor | a. | Deer |
| ii. | Decomposers | b. | Owl |
| iii. | Herbivores | c. | Heat |
| iv. | Carnivores | d. | Human |
| v. | Omnivores | e. | Fungi |
Analogy:
Biotic factor: Animals:: Abiotic factor: ______.
The percentage of solar radiation absorbed by all the green plants for the process of photosynthesis is about
If a grasshopper is eaten by a frog, then the energy transfer will be from
State whether the following statement is true or false. If false, give the correct statement.
Forests protect the soil from erosion
The apex consumer is ______.
Distinguish between the following:
Hibernation and Aestivation
Distinguish between the following:
Hibernation and Aestivation
Distinguish between the following:
Hibernation and Aestivation
