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प्रश्न
What role do vital atmospheric gases play in an ecosystem?
उत्तर
Vital atmospheric gases are oxygen, carbon dioxide and nitrogen.
Oxygen availability seldom becomes a limiting factor for land animals unless they live in soil or invade high altitudes. Plants release oxygen into the air which is used by animals for respiration. During respiration, animals release carbon dioxide which is required by plants for photosynthesis. Nitrogen is an essential gas which is vital for the growth and sustenance of organisms.
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संबंधित प्रश्न
What do you understand by 'consumers of the first and second orders'?
A food chain consists of
The driving force for an ecosystem is
Define a consumer.
______ are called as biotic factors.
Match the following:
| i. | Abiotic factor | a. | Deer |
| ii. | Decomposers | b. | Owl |
| iii. | Herbivores | c. | Heat |
| iv. | Carnivores | d. | Human |
| v. | Omnivores | e. | Fungi |
State whether the following statement is true or false. If false, give the correct statement.
Forests protect the soil from erosion
Which of the following is correct for respiration in plants?
Choose the option giving correct matching the items given in column-I & II.
| Column- I | Column-II | ||
| A | Physical environment | (i) | Ozone layer depletion |
| B | Exposure to UV radiation |
(ii) | Bacteria and Fungi |
| C | Chlorofluoro Carbon compounds | (iii) | Abiotic components |
| D | Decomposers | (iv) | Skin Cancer |
State 10% energy law.
