Answer: Both smallpox and COV 19 are novel diseases in their respective timelines. Both spread by inhaling infected droplets, albeit COV 19 is transmitted through aerosols and surfaces touched by infected people as well.
Explanation:
the center of the solar system is the sun
Carbohydrates are composed of monomers or repeating subunits of simple sugars or monosaccharides, such as glucose, galactose etc.
Answer:
human water has to be filtered and cleaned because it contained many chemical and bacteria animal water can be filtered but anilmals will drink out of a slightly dirty container since they have stronger immune systems
Explanation: