Answer: Option D. -> Indian ocean
Answer: (d)
90°E Ridge lies in the Indian Ocean. The Ninety East Ridge (also rendered as Ninetyeast Ridge, 90E Ridge or 90°E Ridge) is a linear, age-progressive seamount chain in the Indian Ocean and is named for its near-parallel strike along the 90th meridian.
It is approximately 5,000 kilometres (3,100 mi) in length and can be traced topographically from the Bay of Bengal southward towards the Southeast Indian Ridge (SEIR), though the feature continues to the north where it is hidden beneath the sediments of the Bengal Fan.
The ridge extends between latitudes 33°S and 17°N and has an average width of 200 km.

Answer: Option A. -> Tahrir Square — Abu Dhabi
Answer: (a)
Tahrir Square, also known as “Martyr Square”, is a major public town square in Downtown Cairo.
Tahrir Square was the focal point of the 2011 Egyptian Revolution against former president Hosni Mubarak.

Answer: Option D. -> 40,000 km
Answer: (d)The equitorial Circumference of the Earth is nearly 40,000 km.

Answer: Option D. -> 4 3 2 1
Answer: (d)

Answer: Option D. -> Finland - Oslo
Answer: (d)

Answer: Option B. -> Isohels
Answer: (b)Isohels represent points receiving equal amounts of Sunshine.

Answer: Option C. -> Sri Lanka
Answer: (c)

Answer: Option C. -> Rainfall is seasonal and scanty
Answer: (c)Asia has large areas of inland drainage because rainfall is seasonal and scanty.

Answer: Option B. -> Durand line - Bangladesh and India
Answer: (b)

Answer: Option D. -> Mexico and USA
Answer: (d)