1. The correct answer is (D) The Aravalli. The Aravalli Range is one of the world's oldest mountain ranges, dating back to about 1.8 billion years. In contrast, the Himalayas are much younger, formed around 50 million years ago. For more visit here: https://www.tiwariacademy.in/ncert-solutions/class-6/Read more

    The correct answer is (D) The Aravalli. The Aravalli Range is one of the world’s oldest mountain ranges, dating back to about 1.8 billion years. In contrast, the Himalayas are much younger, formed around 50 million years ago.

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  2. The correct answer is (B) Montane forests. Montane forests are found in mountainous regions and vary with altitude. Lower slopes have dense vegetation, while higher altitudes feature coniferous trees. These forests support diverse wildlife and play a crucial role in maintaining ecological balance. FRead more

    The correct answer is (B) Montane forests. Montane forests are found in mountainous regions and vary with altitude. Lower slopes have dense vegetation, while higher altitudes feature coniferous trees. These forests support diverse wildlife and play a crucial role in maintaining ecological balance.

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  3. The correct answer is (D) Light-year. A light-year is a unit of distance used in astronomy to measure how far light travels in one year. In contrast, century (100 years), millennium (1,000 years) and decade (10 years) are used to measure historical time. For more visit here: https://www.tiwariacademRead more

    The correct answer is (D) Light-year. A light-year is a unit of distance used in astronomy to measure how far light travels in one year. In contrast, century (100 years), millennium (1,000 years) and decade (10 years) are used to measure historical time.

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  4. The correct answer is (C) It includes leap years every four years. The Gregorian calendar is a solar calendar introduced by Pope Gregory XIII in 1582. It adjusts for the Earth's orbit by adding a leap year every four years, except for century years not divisible by 400. For more visit here: https://Read more

    The correct answer is (C) It includes leap years every four years. The Gregorian calendar is a solar calendar introduced by Pope Gregory XIII in 1582. It adjusts for the Earth’s orbit by adding a leap year every four years, except for century years not divisible by 400.

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  5. The correct answer is (D) Future predictions. History is studied using sources like archaeological remains, folk songs and newspapers, which provide evidence of past events. Future predictions, however, are speculative and not considered historical sources. For more visit here: https://www.tiwariacaRead more

    The correct answer is (D) Future predictions. History is studied using sources like archaeological remains, folk songs and newspapers, which provide evidence of past events. Future predictions, however, are speculative and not considered historical sources.

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