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Which tool to study space is the LEAST expensive? A) satellite B) space probe C) ground-based telescope D) human space exploration

User Teratorn
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2 Answers

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Answer:

C ground -based telescope

Step-by-step explanation:

User Enricopulatzo
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C ground based telescope. Think of the cost of fuel in all the other options to launch them into space. A telescope is effective here on Earth.
User Rex Lam
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