Battery acid is acidic in nature so its pH will be more.if we add a base its acidity level decreases and it becomes a poor acid. here water acts as a base to decrease the pH value and acidic nature of a acid substance that is battery acid.
The answer is; the melanin in darkly pigmented skin protects DNA from UV radiation, and UV radiation can cause skin cancer
In Africa, due to its equatorial latitude location, receives direct sunlight at more or less 90 degrees most of the year. These highly concentrated rays increase the UV radiation exposure that can cause damage to cell DNA. Selection pressure, therefore, favored individuals with high melanin concentrations that protect against UV. Therefore population evolved towards high melanin densities in the skin.
Answer:
Vanilla
Explanation:
Sometimes that manual labor shows up in the price of the food; sometimes it doesn't ... We thought there would be an easy answer to that, but there isn't. ... This spice is among the most expensive in the world; the biggest producers are Italy, Iran and Spain ... Those forces combine to lead to the labor issues.
nondisjunction is the answer. hope it helps
