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2 questions · 2023 · answers as per the UPSC key

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UPSC 2023 · Q56 · Science & Technology › Space Technology & Astronomy · Save

Consider the following pairs : Objects in space : Description

  1. Cepheids : Giant clouds of dust and gas in space
  2. Nebulae : Stars which brighten and dim periodically
  3. Pulsars : Neutron stars that are formed when massive stars run out of fuel and collapse

How many of the above pairs are correctly matched?

(a) Only one
(b) Only two
(c) All three
(d) None
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Answer: (a) Only one
UPSC 2023 · Q57 · Science & Technology › Space Technology & Astronomy · Save

Which one of the following countries has its own Satellite Navigation System?

(a) Australia
(b) Canada
(c) Israel
(d) Japan
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Answer: (d) Japan