The correct answer to this question is this one: they lacked oxygen. The earliest organisms were completely heterotrophic in nature because of the reason that they lacked oxygen. <span>A heterotroph is an organism that cannot fix carbon and uses organic carbon for growth. </span>
The Answer Is : Acid Drainage
The image is explaing the heat so the ANSWER IS HOT
... During this process, plants cleave the carbon from the two oxygen molecules and release the oxygen back into the surrounding environment. Plants are thus primarily responsible for the presence of atmospheric oxygen.
PLS REPHRASE a bit SO YOU DONT GET BUSTED FOR PLAGIARISM
The steps that the U.S has recently taken to counter cyber crime include; Setting up a system of voluntary cyber-security standards, and also opening a new center dedicated to managing cyber activities. Cyber crimes are crimes that involves a network and a computer, a computer is used as an instrument of further illegal ends. Cyber crimes may threaten a person or a nation's security and financial health.
