Answer:
A scientific law is a statement based on repeated experimental observations that describes some aspect of the universe
Explanation:
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The integumentary system (skin) reacts different on different sun intensity (different length exposure to sun).
For example, moderate exposure to the sunlight contributes to the production of melanin and vitamin D by the body. On the other hand, high exposure to sunlight can have negative health effects such as sunburn, which is an inflammatory response to DNA damage caused by UV radiation.
There are three and they are the Atmosphere, lithosphere, and hydrosphere
Same: It works as a hinge because it moves and attaches it
Diff: idk sorry :/
