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As per IPCC AR6 synthesis Report, global mean sea level increased by ................ between 1901 and 2018.

  • A.0.10 m
  • B.0.20 m
  • C.0.30 m
  • D.0.40 m

Answer: B

Global mean sea level rose by 0.20 m between 1901 and 2018.

The IPCC Sixth Assessment Report states that global mean sea level increased by 0.20 m (likely range 0.15 to 0.25 m) over that period. The rate of rise has accelerated, from about 1.3 mm per year in 1901-1971 to about 3.7 mm per year in 2006-2018, driven by ocean warming and melting glaciers and ice sheets.

0.10 m is too small, and 0.30 m and 0.40 m are larger than the observed rise.

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