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KUMAR PRAKASHAN-OUR ENVIRONMENT-OBJECTIVE QUESTIONS AND ANSWERS (Fill in the blanks)
- Waste substances that are broken down by microbes are called......... ...
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- .......... is formed by interaction between biotic community and abiot...
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- Use of ......... chemical is hazardous for ozone layer.
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- Farm and garden are ...........ecosystem
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- A parasite is in the class of ............category
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- All animals are............. in food chain.
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- Food chain ends with............. organisms from where simple inorgani...
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- Solar energy is transformed into ......... by chlorophyllous organisms...
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- Main energy source in an ecosystem is..............
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- A problem of ......... is due to entry of non- biodegradable substance...
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- UV radiation can cause ..................cancer in human beings.
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- ..................... is flow in form of food in an ecosystem.
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