Science is based on "natural" causes and effects. What does "natural" mean in this context?
O Phenomena that can be reliably observed with senses or instruments; NOT
supernatural.
O Phenomena that occur on their own without being manipulated; NOT
controlled.
O Phenomena that occur without the direct participation of humans; NOT
artificial.

○Phenomena that occur on their own without being manipulated;Not controlled.

Explanation:

the word natural means which already existed in nature and not controlled by anyone or a thing, where the Phenomena that occur on their own without being manipulated; Not controlled.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation:

gag reflex, poor dentition, gum retraction

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