Aerosols present in air are

Options

A. negatively charged
B. positive charged
C. neutral
D. combination of all of the above

Answer

To solve the question about aerosols present in the air, we can break it down into the following steps:

### Step 1: Define Aerosols
Aerosols are defined as a system of liquid and solid particles that are suspended in a gas. In the context of the question, the gas is typically air.

### Step 2: Identify Components of Aerosols
Aerosols consist of tiny particles, which can include:
- Liquid droplets (like water vapor)
- Solid particles (like dust, smoke, or pollen)

### Step 3: Understand Distribution
These particles are uniformly distributed in the gas, meaning they are spread out evenly throughout the air.

### Step 4: Recognize Charge of Aerosols
Aerosols can have different electrical charges:
- Negatively charged
- Positively charged
- Neutral

### Step 5: Conclude the Answer
Based on the definition and characteristics of aerosols, we can conclude that aerosols present in the air are a combination of liquid and solid particles that can carry various charges.

### Final Answer
Aerosols present in air are a combination of liquid and solid particles suspended in the air, which can be negatively charged, positively charged, or neutral.

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