PDF chapter test TRY NOW

Answer the following questions:
 
1. What are trophic levels ? Give an example of food chain and state the different trophic levels in it.
 
Answer:
 
2. What will happen if we kill all the organisms in one trophic level?
 
Answer:
 
3. If all the waste we generate is biodegradable, will this have no impact on the environment?
 
Answer:
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