The protective ozone layer of stratosphere itself requires protection from indiscriminate use of :

Options

A. Fungicides, insecticides, bactericides and medicines
B. Aerosols and high flying jets
C. Atomic explosion and industrials wastes
D. Baloons and turbo-prop aeroplanes.

Answer

**Step-by-Step Solution:**

1. **Understanding the Ozone Layer**: The ozone layer is a protective layer in the stratosphere that absorbs most of the sun's harmful ultraviolet (UV) radiation. It is crucial for protecting living organisms on Earth.

2. **Identifying Threats to the Ozone Layer**: Various substances and activities can harm the ozone layer. These include chemicals and emissions from industrial activities, transportation, and agricultural practices.

3. **Recognizing Specific Threats**: Among the substances mentioned, fungicides, insecticides, bactericides, medicines, aerosols, high-flying jets, and industrial waste are potential threats. However, not all of these have the same impact on the ozone layer.

4. **Focusing on Aerosols and High-Flying Jets**: Aerosols are tiny particles or droplets suspended in the atmosphere. They can come from various sources, including the burning of fossil fuels and the use of spray cans containing chlorofluorocarbons (CFCs), which are known to deplete ozone.

5. **Impact of High-Flying Jets**: High-flying jets, especially supersonic aircraft, release nitrous oxide and other pollutants at high altitudes, which can react with ozone and contribute to its depletion.

6. **Conclusion**: The protective ozone layer of the stratosphere requires protection from the indiscriminate use of aerosols and emissions from high-flying jets, as these are significant contributors to ozone layer depletion.

**Final Answer**: The protective ozone layer of the stratosphere itself requires protection from indiscriminate use of **aerosols and high-flying jets**.

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