This document contains a science test for 6th grade biology students covering topics about the environment. The test has multiple choice, definition, and short answer questions about different environmental concepts including producers, consumers, decomposers, photosynthesis, vermicomposting, biotic and abiotic components, scavengers, microorganisms, recycling, the twin-bin system, and the interrelationships between different environmental components. It also includes questions about the impacts of plastic on the environment and the importance of segregating different types of waste.

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SCIENCE TEST FOR CLASS 6 BIOLOGY
OUR ENVIRONMENT
Q1: Fill in the blanks:
1. Vermicomposting is done by ________________.
2. Decomposers include_______________.
3. The green pigment in plants is called____________.
4. Carnivores are called as______________.
5. Herbivores are called as______________.
Q2: Difference between the following:
1. Autotrophs and Heterotrophs
2. Decomposers and Scavengers
3. Biodegradable and Non biodegradable components
Q3: Define the following questions:
1. Environment
2. Producers
3. Consumers
4. Decomposers
5. Chlorophyll
6. Photosynthesis
7. Vermicomposting
Q4: Answer the following questions:
1. What are abiotic and biotic components? Explain with examples.
2. What are scavengers? Give examples.
3. Define micro-organisms with examples
4. What is the process of recycling of minerals?
5. Explain twin – bin system.
6. Which component of air gets used up in the process of photosynthesis?
7. How are plastic harmful to the environment?
8. Why should we segregate different types of waste?
Q5: Draw a flow chart to show the various components of environment?
Q6: Draw the flow chart of the following:
1. Interrelationship of different components of the environment.
2. Balance between carbon dioxide and oxygen in atmosphere.