Answer:
it is a because i did this one
Explanation:
Increase in temperature. I am not exactly sure what you're looking for but basically water vapour in the air has to do with evaporation of water from the surroundings so it will definitely have to do with the increase in global temperatures brought by global warming
Answer:
(A): DNA and protein
(B): The case for proteins appeared stronger until the 1940s, especially since biochemists had identified them as a class of macromolecules with great heterogeneity and function specificity, essential requirements for the hereditary material. Moreover, little was known about nucleic acids, the physical and chemical properties of which seemed far too uniform to account for the multitude of specific hereditary traits of each organism
(C): Virulent strains are pathogenic (causing disease), whereas non-virulent strains are non-pathogenic (harmless) strains.
2 is crescent and 4 is gibbous