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PIMSO 2025 - Science - Secondary 2 - National Round Question 30

PIMSO Science · PIMSO 2025 - Science - Secondary 2 - National Round

Question 30

Which of the following statements is NOT TRUE about the Oort cloud?
Question illustration
Original image credit: www.astronomy.com
Editorial reading: in C, interpret observation as direct observation of the distant cloud in place, rather than comets that later enter the inner Solar System.
  1. The Oort cloud is often referred to as “cometary reservoir”
  2. According to predictions, the Oort cloud contain trillion icy objects.
  3. Scientists have yet to observe objects from the Oort cloud.
  4. It will take 30 years for Voyager 1 to reach the inner boundary of the Oort cloud.