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General Sciences Practice Test

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Question 1 of 5 LET / General Sciences
Question 1 Light and Geometric Optics

If the critical angle for internal reflection inside a certain transparent material is found 48 degrees, what is the index of refraction of the material? (air is outside the material)

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Question 2 Earth and Space Astronomy and Environment

Which of the following is included in the term hydrosphere?

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Question 3 Mechanics

Two items of similar shapes and weights are dropped simultaneously from a ten-storey building. Which of the following statements is CORRECT about the falling rate (acceleration) of the objects?

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Question 4 Ecology

What do you call the natural environment where a certain organism lives and thrives?

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Question 5 Microbiology

Yeast, used in making bread, is a ________.

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