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1.melanin 2.hemoglobin 3.carotene
Exposure to ultraviolet B radiation increases the production of melanin.
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List one environmental factor that can affect a person's height
The physical factors which affect the environment are temperature,humidity,intensity of radiation of light &light..these are physical factors as they are about the mechanics..
Light, solar radiation, suns rays, wind, altitude and more. But these are the main factors that affect air temperature.
There are many factors that affect the communication skills, abilities and development of individuals. Some of them include environment, exposure, society and so much more.
Smoking, lack of exercise, lack of attention to Asthma, and exposure to irritants such as dust can all affect the performance of the respiratory and circulatory systems.
Some factors that determine is diet & exercise. The more calcium you eat, the better chance you have of being tall.
Three factors affect radiation exposure- time, distance,, shielding. Time can be controlled in some cases by planning work in advance to limit the time you are exposed. Distance is frequently the best control- since exposure is based on the inverse square of the distance. Stay as far from the source as possible. Shielding is effective, however, is often not practical. Enough lead and concrete CAN stop most gamma rays- but you cannot walk wearing a ton of lead and concrete.
The more persons in the family, the more food the family needs.