The answer to that question is 23, to be exact. Of those 23 countries that divide up the continent, Canada, and the United States comprise nearly 80% of the total land area.
I really hope this reply serves as a complete answer and is exactly what you were looking for.
~Brooke❤️
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Answer: C) stars in these regions are hidden by interstellar dust grains.</h2>
Explanation:
Some areas of the Milky Way seem dark because those are areas of the galaxy that are hidden by huge columns of interstellar dust that we cannot see through the visible range of the electromagnetic spectrum (which is the range in which our eyes see).
However, to solve this problem, astronomers use telescopes that work in the range of infrared and radio waves, to observe a little more through this intersetelar dust.
We can control resource depletion by rationing them and making thing that don't need or use so much resources.
