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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.
D or B because they don’t live there
I think it would be false because it realates with respiratory
Purdah or pardah (from Persian: پرده, meaning "curtain") is a religious and social practice of female seclusion prevalent among some Muslim and Hindu communities in South Asia.[1] It takes two forms: physical segregation of the sexes and the requirement that women cover their bodies so as to cover their skin and conceal their form. A woman who practices purdah can be referred to as pardanashin or purdahnishan.
Oil is what those countries rely on the most