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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.
Answer: A. to provide freshwater to support human activities.
Weathering is the breaking down of rocks, soil and minerals. Erosion is the process of being gradually worn away by natural agents such as wind and water.
Some rocks may be generally weaker which causes them to break down quicker than rocks that are stronger.
Answer:
The Answer is D
Explanation:
When water gets inbetween a rock of some sort, it freezes and expands over time, causing it to change the appearance of the rock.
