1. Antarctica has a simple, fragile ecosystem, making it easier to study environmental changes. Therefore option B is correct answer. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    Antarctica has a simple, fragile ecosystem, making it easier to study environmental changes. Therefore option B is correct answer.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    See less
    • 18
  2. The author and her companions walked on thick ice over the ocean. Therefore option B is correct answer. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    The author and her companions walked on thick ice over the ocean. Therefore option B is correct answer.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    See less
    • 18
  3. The author implies that protecting small elements like phytoplankton can have significant positive impacts. Therefore option C is correct answer. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    The author implies that protecting small elements like phytoplankton can have significant positive impacts. Therefore option C is correct answer.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    See less
    • 17
  4. Ozone depletion impacts phytoplankton, which could disrupt the entire Antarctic food chain. Therefore option B is correct answer. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    Ozone depletion impacts phytoplankton, which could disrupt the entire Antarctic food chain. Therefore option B is correct answer.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    See less
    • 18
  5. Phytoplankton use photosynthesis to absorb carbon and produce organic compounds. Therefore option B is correct answer. For more please visit here: https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    Phytoplankton use photosynthesis to absorb carbon and produce organic compounds. Therefore option B is correct answer.

    For more please visit here:
    https://www.tiwariacademy.com/ncert-solutions/class-12/english/vistas-chapter-3/

    See less
    • 18