The key element found in compounds?​

The most common elements present in organic compounds are carbon, hydrogen, oxygen, and nitrogen.

carbon dioxideCO2carbon (C) and oxygen (O)

sodium chlorideNaClsodium (Na) and chlorine (Cl)

sodium hydroxideNaOHsodium (Na), oxygen (O) and hydrogen (H)

calcium chlorideCaCl2calcium (Ca) and chlorine (Cl)

Explanation:

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.

if you know your abc's you should be able to get your answer or just use google