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Author Question: What is the diameter of the galaxy, in km? A) about 1 billion trillion km (1021 km) B) about 10 ... (Read 26 times)

xclash

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on: Jul 27, 2018
What is the diameter of the galaxy, in km?
 
  A) about 1 billion trillion km (1021 km) B) about 10 trillion km (1013 km)
  C) about 1 million trillion km (1018 km) D) about 100,000 km (105 km)

Question 2

Which of the following describes tectonics?
 
  A) the excavation of bowl-shaped depressions by asteroids or comets striking a planet's surface
  B) the eruption of molten rock from a planet's interior to its surface
  C) the disruption of a planet's surface by internal stresses
  D) the wearing down or building up of geological features by wind, water, ice, and other phenomena of planetary weather


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Eazy416

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Reply #1 on: Jul 27, 2018
Answer to Question 1

A

Answer to Question 2

C


xclash

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Reply 2 on: Jul 27, 2018
Excellent

Jsherida

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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