The answer is C. Hope this helped
Cyanobacteria, also known as "blue-green algae", are the unicellular organisms which are able to produce oxygen.
Approximately 540 years ago, the atmosphere was very poor on oxygen. Cyanobacteria are thought to be responsible for the oxidization of the atmosphere back then, in an event known as <em>"The Great Oxygenation Event"</em>. As a result, Earth's life forms suffered drastic changes in their composition, as they evolved from being <em>anaerobic</em> to becoming organisms <em>highly dependant</em> on oxygen. The oxygenation of the atmosphere would eventually provide the adequate environment in order for the <em>Cambrian Explosion</em>, or the first diversification of living organisms, to happen.
<span>Women entered the workforce in much larger numbers than they had in the past.
Hope this helps :)</span>
Answer: 1) What two countries were already involved in a military conflict before the beginning of World War II? 2) What was the longest battle of World War II? 3) What was the first Nazi concentration camp? 4) In which battle did the Axis powers lose about a quarter of their total troops on the Eastern Front?
Answer: Politics in some parts of the colonies oscillated, and social movements that opposed slavery emerged.
Explanation:
It is essential to point out at the outset that the slave policy in the South and North was different. The south was entirely dependent on the slave labour, while in the north the slaves were in somewhat better conditions. However, when we talk about the north of More specifically New England, there were some oscillations in the colony. New England freed more and more slaves from year to year, primarily because of the fact that they were involved in the war. The colonial government in Rhode Island, which is an integral part of New England, sought to maintain a somewhat more rigid position on slaves, but all went towards freeing these people. Specific religious-social movements also emerged, which, by invoking moral principles, sought to eliminate slavery.
