Pluto is not considered a planet of the Sun. Once classified as the ninth planet, it was reclassified as a dwarf planet in 2006 by the International Astronomical Union due to its small size and irregular orbit.
Category: Class 6 Science
NCERT Solutions and Important Questions for class 6 Science for CBSE exams 2020-2021.
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Sirius is the brighter star compared to the Pole Star. Located in the constellation Canis Major, Sirius is the brightest star in the night sky, while the Pole Star (Polaris) is less luminous but important for navigation.
Light pollution refers to the excessive or misdirected artificial light in urban areas, disrupting natural darkness. It affects stargazing, wildlife, and human health, reducing the visibility of celestial objects and altering ecosystems.
The Digpa-Rasta-Ri mountain range in Hanle has been renamed Mount Saraswati. This renaming holds cultural and symbolic significance, honoring the Hindu goddess of knowledge, Saraswati, and reflecting India’s connection to its natural and spiritual heritage.
Subrahmanyan Chandrasekhar was an Indian-American astrophysicist who won the Nobel Prize in Physics in 1983 for his work on stellar evolution, particularly the Chandrasekhar Limit, which explains the mass limit for white dwarf stars.