Question

The green muffler is used against which of the following types of pollution?

• A. Air
• B. Soil
• C. Noise
• D. Water

Answer 1

The correct option is C

Noise

The correct option is C.
The explanation for the correct option:
Option C:

1. A method known as “Green Muffler”, involves planting 4-6 rows of trees around noisy or populous regions, such as communities near highways, industrial sites, and roadside communities.
2. These newly planted trees lessen noise pollution because they filter out the noise and prevent or slow its transmission to nearby residents.
3. By absorbing polluting gases and causing the settling of suspended particulate matter or dust produced by moving vehicles, it aids in the reduction of air pollution.
4. Noise pollution, also known as environmental noise or sound pollution, is the spread of noise that has an adverse effect on human or animal behavior and is generally very destructive.
5. Machines, transportation, and propagation systems are the main causes of outdoor noise pollution worldwide.

Explanations for the incorrect options:
Option A:

1. A material that has negative or hazardous effects on the environment is said to be present in the air or introduced into it.
2. Cut back on the number of car trips we make.
3. Reduce or stop using wood stoves and fireplaces.
4. Do not burn rubbish, leaves, or other items.

Option B:

1. The presence of xenobiotic compounds or other changes to the natural soil environment results in soil contamination, soil pollution, or land pollution as a component of land degradation.
2. Industrial activity, agricultural chemicals, or inappropriate waste disposal are the usual culprits.
3. Recycling and reuse of waste are important for reducing soil contamination.
4. Wastes like paper, plastic, metal, glass, organics, petroleum products and industrial effluents should all be recycled and utilized again.
5. Methods of integrated waste treatment, such as home composting, should be adopted.

Option D:

1. Water contamination is the tainting of bodies of water, typically as a result of human activity, which has a detrimental impact on their uses.
2. Aquifers, reservoirs, lakes, rivers, seas, and groundwater are all examples of bodies of water.
3. When contaminants are introduced into these water bodies, water contamination results.
4. Precipitation, ion exchange, reverse osmosis, and coagulation are a few chemical techniques that aid in the management of water pollution.
   

Final answer: Green Muffler is used against noise pollution.