Answer:
B is the answer
Explanation:
Because it a molecular mass of one
Answer:
For a mild human cough in air at 20 °C and 50% relative humidity, we found that ... larger droplets are dispersed into smaller ones gradually while moving away from the ... Complex phase change and transport phenomena such as evaporation and ... Natural Ventilation for Infection Control in Health-Care Settings
Explanation
i think it c i dont know if im right tho.
The answer is (4). The crystal structure of diamond is a strong network of atoms. And structure of graphite is organized in layers. Due to the different crystal structure, they have the different properties.