The statement above is TRUE. Puncture wounds refers to an injury that is caused by piercing of skin; a small hole is usually present. Puncture wounds do not usually bleed excessively but most times tissues and skin are crushed. Punctured wound can be superficial or deep.
The answer is: An air conditioner that turns on if the temperature gets too hot.
Even though they hurt you emotionally, Negative feedbacks serve their own important function. They keep your feet on the ground and prevent you from getting too arrogant.
This function is similar as a cooling air conditioner. Hot temperature in the comparison above represent your arrogance and the air conditioner represent the negative feedback.
The color and texture of both things can be used for the upper middle and lower layers of the earth
