read the excerpt from chapter three of windows to the universe: revolutions in astronomy. refracting…

read the excerpt from chapter three of windows to the universe: revolutions in astronomy. refracting telescopes, which use lenses to gather and focus light, need lenses made from pure, bubble - free glass. these lenses must be ground and polished with great precision. reflecting telescopes require mirrors shaped into precise parabolic curves. any mistake in shaping or polishing the lenses or mirrors could result in blurry images. which word signals cause and effect? which into mistake result

read the excerpt from chapter three of windows to the universe: revolutions in astronomy. refracting telescopes, which use lenses to gather and focus light, need lenses made from pure, bubble - free glass. these lenses must be ground and polished with great precision. reflecting telescopes require mirrors shaped into precise parabolic curves. any mistake in shaping or polishing the lenses or mirrors could result in blurry images. which word signals cause and effect? which into mistake result

Answer

Brief Explanations:

The word "result" indicates a cause - and - effect relationship. A mistake (cause) leads to blurry images (effect). The other words "which", "into", and "mistake" do not signal cause - and - effect.

Answer:

result