The river that forms the border is known as the Paraná River
Because Cyanobacteria appeared
Cyanobacteria's excrement formed a lot of oxygen in the atmosphere which make the earth temperature cold
This allow a liquid water to formed on the surface ( because if the temperature is too high, the water will evaporate) and eventually formed oceans
Answer:
Its important to understand the difference between true north and magnetic north because true north is a fixed point on the globe. ... Magnetic north is the direction that a compass needle points to as it aligns with the Earth's magnetic field.
Explanation:
i just did it i got a 100.
South America is in the Western Hemisphere so it is True.
Big Bang was 13.8 million years ago
Scientific Theory is C
Evidence of Big Bang might be B
