when decomposers are unable to break down industrial wastes,they become more concentrated as they move through the food chain.this process is called biological ?

can anyone please help me.

Yes, Mercury accumulation in catfish is a great example.

i have to choose between concentration ,magnification,or synthesis.

http://en.wikipedia.org/wiki/Biomagnification

its magnification

Certainly! The process you are referring to is called "biological magnification" or "biomagnification." It occurs when certain substances or pollutants, such as industrial wastes or chemicals, cannot be broken down by decomposers in the environment. As a result, these substances accumulate or become more concentrated as they move up the food chain from one organism to another.

Here's a step-by-step explanation of how you can arrive at the answer:

1. Start by understanding the key elements of the question: "When decomposers are unable to break down industrial wastes, they become more concentrated as they move through the food chain. This process is called biological ____?"

2. Identify the keywords in the question: "decomposers," "unable to break down," "industrial wastes," "more concentrated," "move through the food chain," and "process called."

3. Based on the context, think about the term that describes the process when substances become more concentrated as they move through the food chain due to the inability of decomposers to break them down.

4. Recall your knowledge of ecological processes and interactions within an ecosystem. In this case, the term "biological magnification" or "biomagnification" comes to mind.

5. Confirm your answer by matching it with the options provided or by referring to reliable sources like textbooks, scientific articles, or trusted websites.

Therefore, the answer to your question is "biological magnification" or "biomagnification."