You answer would be D.) Genetic Engineering.
Hope this Helps =)
Oklololololololololololololololol
The American Heart Association recommends eating at least 7 <span>ounces of oily fish per week to help reduce your risk of heart disease.
In short, Your Answer would be Option A
Hope this helps!</span>
Answer :There was enough oxygen in the atmosphere to support a major burst of life on Earth
Explanation:
The Great Oxygen Event marks the time, approximately 2.5 billion years ago, when there was enough oxygen in the atmosphere to support a major burst of life on Earth
For the first half of the Earht's history, there was no oxygen in the atmosphere. It was inhabited only by single-celled organisms.Of those simple life forms, the cyanobacteria may have. evolved a way to take energy from sunlight, and used it to make sugars out of water and carbon dioxide. They used the same chemical process we know as photosynthesis. This released vast quantities of oxygen into the atmosphere and triggered the evolution of complex life.
