Minute particles and liquid droplets are collectively called

The correct answer is D. Aerosols.

Aerosols are a suspension of fine solid particles or liquid droplets in a gas. They can be natural or man-made, and can be found in the air, water, and soil. Aerosols can have a significant impact on the environment, and can be harmful to human health.

Convection current is the movement of heat through a fluid (liquid or gas) due to differences in temperature. Ozone is a gas that is found in the Earth’s atmosphere. UV radiation is a type of electromagnetic radiation that is harmful to human health.

Here are some additional details about each option:

• Convection current: Convection current is the movement of heat through a fluid (liquid or gas) due to differences in temperature. Warmer fluids rise, while cooler fluids sink. This movement of fluids can cause currents, which can transport heat and other substances. Convection currents are important in many natural processes, such as the circulation of the Earth’s atmosphere and the formation of clouds.
• Ozone: Ozone is a gas that is found in the Earth’s atmosphere. It is a molecule that is made up of three oxygen atoms. Ozone is important because it protects the Earth from harmful ultraviolet radiation from the sun. However, ozone can also be harmful to human health if it is inhaled in high concentrations.
• UV radiation: UV radiation is a type of electromagnetic radiation that is harmful to human health. UV radiation can cause skin cancer, sunburn, and eye damage. It can also weaken the immune system and make people more susceptible to other diseases.
• Aerosols: Aerosols are a suspension of fine solid particles or liquid droplets in a gas. They can be natural or man-made, and can be found in the air, water, and soil. Aerosols can have a significant impact on the environment, and can be harmful to human health.