How would the disposal of garbage, etc. affect the living organisms in the river?

Explanation

### Step-by-Step Text Solution:

1. **Understanding Garbage Disposal in Water**: When garbage is disposed of directly into rivers, it introduces various substances and pollutants into the water. This can include organic waste, plastics, chemicals, and other harmful materials.

2. **Formation of Layers**: The excessive garbage creates layers of waste in the water. These layers can block sunlight from reaching the deeper parts of the water body, affecting the aquatic ecosystem.

3. **Eutrophication Process**: The presence of organic waste in the water encourages the growth of aquatic plants and algae, a process known as eutrophication. This is characterized by an excessive increase in the number of plants and algae due to the nutrients released from the decomposing garbage.

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