What are the conditions favouring AIR-BORNE disease?

Many common infections can spread by airborne transmission at least in some cases, including but not limited to: CO.VID-19; measles morbillivirus, chickenpox virus; Mycobacterium tuberculosis, influenza virus, enterovirus, norovirus, and less commonly coronavirus, adenovirus, and possibly respiratory syncytial virus.

Air-borne diseases are favoured in various ways like if the pollution rate is high then the spreading of air-borne diseases will be high.

The air-borne disease can also be spread in case if a sick person sneezes or coughs the microbes that cause the disease will be spread in the air and could be inhaled by healthy people which will make them sick.

true is the

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.