1. What is the passage about?
2. Which planet is mentioned in the passage?
3. How does IAU classify the planet Pluto?
4. What is the abbreviation of IAU?
5. Name some planets that you know in the solar system.
Answers
Answer:
1 ]
A planet [1] is a celestial body that (a) is in orbit around the Sun.
A planet [1] is a celestial body that (a) is in orbit around the Sun. (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and
A planet [1] is a celestial body that (a) is in orbit around the Sun. (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.
A planet [1] is a celestial body that (a) is in orbit around the Sun. (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.2 ]
A planet [1] is a celestial body that (a) is in orbit around the Sun. (b) has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape, and (c) has cleared the neighbourhood around its orbit.2 ]Planet Pluto .
3 ]
(IAU) downgraded the status of Pluto to that of a dwarf planet because it did not meet the three criteria the IAU uses to define a full-sized planet. Essentially Pluto meets all the criteria except one—it “has not cleared its neighboring region of other objects.”
4 ]
Membership 82 national members 13,701 individual members
Membership 82 national members 13,701 individual membersPresident Ewine van Dishoeck
Membership 82 national members 13,701 individual membersPresident Ewine van DishoeckGeneral Secretary Maria Teresa Lago
5 ]
Earth , Mars , Jupiter , Saturn , Vinus , Neptune , Urenus , Mercury .