What is the difference between respiratory droplets and airborne transmission?

• A. Respiratory droplets do not stay in the air as long.
• B. Airborne transmission lasts shorter in air.
• C. They are the same.
• D. Respiratory droplets travel farther than airborne.

Answer: (A)

The key idea is the size and behavior of the particles involved. Respiratory droplets are larger and don’t stay aloft for long; gravity pulls them down quickly, so they tend to travel only short distances and settle onto surfaces. Airborne transmission involves smaller particles (aerosols) that can linger in the air for extended periods and can be carried by air currents over longer distances.

That’s why the statement about droplets not staying in the air as long is the best choice. It correctly contrasts the fleeting presence of larger droplets with the persistence of aerosols. The other options conflict with how particle size affects travel and duration, or they wrongly claim the two are the same.