It should be natural selection since there is no external influence implied. (like environment or genetic mutations.)
The respiratory system consists of all the organs involved in breathing. These include the nose, pharynx, larynx, trachea, bronchi and lungs. ... The nose, pharynx, larynx, trachea and bronchi all work like a system of pipes through which the air is funnelled down into our lungs.
Answer: B
Explanation: That'd be based on how it's taken care of
Plate tectonics located in our crust crashing or colliding into each other cause earthquakes to occur.
Answer:
The fact people don't want to change may be the greastest impact. Humans want answeres quick and easy we are willing to destory the earth for our ways as we have been for 1000ths of years. We never change we evolve but don't change our ways.
Explanation:
Hope This Helps
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