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.
I believe that the Korean War started when the North Korean Communist army crossed the 38th Parallel and invaded non-Communist South Korea.
Answer:
The vast majority of labor was unpaid. The only enslaved person at Monticello who received something approximating a wage was George Granger, Sr., who was paid $65 a year (about half the wage of a white overseer) when he served as Monticello overseer.Life expectancy was short, on many plantations only 7-9 years.Industrial slaves worked twelve hours per day, six days per week. The only breaks they received were for a short lunch during the day, and Sunday or the occasional holiday during the week.Fearing that black literacy would prove a threat to the slave system -- which relied on slaves' dependence on masters -- whites in many colonies instituted laws forbidding slaves to learn to read or write and making it a crime for others to teach them.However, the health of plantation slaves was far worse than that of whites. Unsanitary conditions, inadequate nutrition and unrelenting hard labor made slaves highly susceptible to disease. Illnesses were generally not treated adequately, and slaves were often forced to work even when sick.Slaves were punished by whipping, shackling, beating, mutilation, branding, and/or imprisonment. Punishment was most often meted out in response to disobedience or perceived infractions, but masters or overseers sometimes abused slaves to assert dominance.
Answer:
Taxing without representation
Explanation:
Taxing without representation without representation is one of the biggest reasons leading up to the American revolution.
At that time , the British government imposed a really high tax rate for American colonies in order to pay for it war debt. But, they did not give the colonies with any seats within the government. This made the American colonies have no legal measures that they can pursue to negotiate for their behalf within the government.
Thomas Jefferson was one of the figure that popularized this British Government's flaw. He stated in his writings that the only way for the colonists to erase this unfair taxation is through military's revolution.
I think it was the founding fathers
