If we ignore all ifs & buts, then the exact temperature for melting of snow/ice is 0.01 degree C or 32.02 degree F. While answering this, we should also remember that water has a triple point at this temperature, i.e., it can exist in all the three forms - solid, liquid and gas.
Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites and can spread between individuals. 1  Infectious diseases are caused by microorganisms such as viruses, bacteria, fungi or parasites. 2  Microorganisms that cause disease are collectively called pathogens.
Microorganisms or microbes are microscopic organisms that exist as unicellular, multicellular, or cell clusters. Microorganims are widespread in nature and are beneficial to life, but some can cause serious harm. They can be divided into six major types: bacteria, archaea, fungi, protozoa, algae, and viruses.