Answer:
In meteorology, a cloud is an aerosol consisting of a visible mass of minute liquid droplets, frozen crystals, or other particles suspended in the atmosphere of a planetary body or similar space. Water or various other chemicals may compose the droplets and crystals. On Earth, clouds are formed as a result of saturation of the air when it is cooled to its dew point, or when it gains sufficient moisture (usually in the form of water vapor) from an adjacent source to raise the dew point to the ambient temperature.
Explanation:
I looked on wiki but for short a cloud is a collection of gasses
Answer:
Which factor is expected to have the greatest impact in the next two decades on the burden of disease? a. Urbanization b. Population aging
Explanation:
Answer: Antibodies block invasion of sporozoites into liver cells
Explanation: IFN-y and CD8 T cells inhibit parasite development in hepatocytes. Antibodies block invasion of merozoites into erythrocytes. Antibodies prevent sequestration of infected erythrocytes by preventing binding to adhesion molecules on the vascular endothelium.
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