Answer:
the option that does not describe an opinion is, they can be proven true or false.
Explanation:
opinions are not based on factual evidence, they're personal views and beliefs; therefore, they cannot be proven true or false.
Most of Canada's population lives on its southern border (near US border).
Explanation:
The reason why most Canadian population lives in southern border is basically because most of Canada is very far north (it claims all the land to the North Pole), and only the southern regions are inhabitable. More practically, the people live where the agricultural land is located which were friendlier for them to do farming and agriculture.
The Gaia hypothesis proposes that the Earth is a self-regulating intricate structure which involves the atmosphere, the hydrospheres, the biosphere, and the pedosphere, firmly paired as an evolving system. The aforementioned hypothesis claims that this system, called Gaia, looks for a chemical and physical environment that is best for contemporary life as a whole. A lot of processes in the Earth's surface crucial for the conditions of life rely on the interaction of living forms with elements that are inorganic. These processes indicate a global control system that controls Earth's surface atmosphere, temperature, ocean salinity and composition, which is powered by the global thermodynamic disequilibrium state of the Earth system.