What is the total heat gained by an 8 gram piece of iron that increases in temperature by 6 c

21.6 Joules

Explanation:

Q= heat gained

m= mass of the substance = 8g

c = heat capacity of  iron= 0.45 J/g ° C    

Q= 21.6 Joules

Thus heat gained by 8 g of iron is = 21.6 Joules

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

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