I am sorry that nobody answered you I also need an answer.
Seafloor spreading occurs at divergent plate boundaries. As tectonic plates slowly move away from each other, heat from the mantle's convection currents makes the crust more plastic and less dense. The less-dense material rises, often forming a mountain or elevated area of the seafloor. Eventually, the crust cracks.
Answer: Nonliving
Explanation:
It cannot be classified as dead or living as it isn't and never was alive, and it is important to survival and therefore isn't unimportant
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Answer:
- United States
- Canada
Explanation:
As per the question, the two countries that concluded the construction of 'St. Lawrence Waterway' would be the United States, as well as, Canada. The waterway construction began in the year 1954 and took five long years and it was completed in 1959. The project was a joint venture between the U.S. and Canada which is an arrangement of several channels, waterways, and locks that allows the easy travelling of ships towards the Great Lakes located in Northern America from the Atlantic Ocean. The seaway is elongated for 595 Km beginning from Montreal to Port Colborne.
If the water to rise then that could wipe out things like Florida which is only 10 feet above sea level and the population could go down depending on how high the water rose
