Question

In 2006, the IAU adopted a new definition of a planet. IAU stands for______________.
A Indian astronomical union
B International Astronomy of universe
C International Astronomical union
D Indian Astronomy of Universe

Answer 1

Hint: This question is based on Astronomy. In Astronomy we have to study about the planet and other celestial objects which are present outside the Earth. To study about these celestial objects and their movements we make an organization. This organization helps us to know about the space and their activity.

Complete step by step answer:
We have given a term IAU that is known as International Astronomical union. It is an international organization founded in August 2006. It is formed to study about the space activities and their movements in space. This is an international organization where professional scientists are involved in research about astronomy.

The objective of the International Astronomical union is to promote the science of astronomy and research and development of the planets and their environment. The IAU is defined that the planet is a celestial body and it is in orbit around the Sun. The planets have enough mass to proper balance of hydrostatic equilibrium. The International Astronomical Union also defines that Pluto is not considered a planet.

Therefore, from the given options, the correct option is (C).

Note:
In this question, students must have knowledge of the term IAU. India does not have its own union, but India is also the part of this international union. The International Astronomical union was also joined by India in 1948 after getting independence. This initiative was taken by the government of India. The headquarters of the International Astronomical Union is located in Paris, France.