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.
You would find it in the disk.
Answer:
The Quebec-City-Windsor Corridor
Explanation:
The population density of Canada is 4 people/km².
The most densely-populated urban areas are Vancouver and Montreal (4800/km²).
The most densely populated region of Canada (80/km²) is the Quebec-City-Windsor Corridor. It contains almost half the population of Canada.
There are two main reasons for this.
(a) Climate
The region is entirely below the 47th parallel, so the summers are warm, the winters are not harsh, and the area is suitable for agriculture.
(b) Location
The corridor is close to the border with the United States and carries the bulk of Canada's trade with them. It makes sense for people to live as close to the US border as possible.
Answer:
I'm assuming they live in a home.
The correct answer is C) Seafloor spreading
This new oceanic crust is gradually moved away from the ridge itself. Seafloor spreading is one of the reasons of the continental drift