Why do scientists make observations

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:

i didn't have the answer choices , but i tried my best.

sodium i think the chemical element of atomic number 11, a soft silver-white reactive metal of the alkali metal group.

its temperature is increasing. this causes molecular vibrations to increase.