It is certainly true that nationalism has its upsides. A national consciousness led to the creation of states (instead of feudal regions or city-states) and remembering traditions and your history is important because it connects you to other people. However, being a national means identifying as something; hence , you are different from others. At some points, nationalism leads to despising other populations either because they are different and have different traditions or because they are simply unknown to us. In its worst instances, nationalism has led to nazism and genocide; the notion that a nation is better than another is the start of such actions. Hence, it is important that despite having a proud knowledge of our history and our identity, we also reach out towards other cultures, accept them and learn from them.
The correct answer for the question that is being presented above is this one: "oxygen became available from cyanobacteria." About 1.2 billion years ago, eukaryotic and multicelled organisms evolved because oxygen became available from cyanobacteria.
Clearcutting has several negative impacts on both human and environment.
Many studies showed that clearcutting method will cause nearly three times the amount of erosion due to higher risk of landslides.
This will potentially very dangerous for human and the environment around Canada
hope this helps
Your answer is radiometric dating