Question: There is an important box in this chapter that is all about Gravitational Lensing. What is a gravitational lens? Group of answer choices It is

There is an important box in this chapter that is all about Gravitational Lensing. What is a gravitational lens? Group of answer choices It is a type of lens used in X-ray telescopes. It is a glass lens that is extremely heavy. It is an area of warped space that affects light. It is an effect of Earth's gravity making a telescope focus more poorly

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6. How can hidden knowledge guide our actions?

7. How can the models we use have a detrimental effect on others?