India accounts for half of the world's total number of :

 

A rift valley is an elongated trough like feature bounded by faults. The term 'garben' is considered synonymous to rift valley.

Alternative (a) refers to a delta

The hot dry summers and cool wet winters are especially suited for citrus fruits and therefore these lands are some times reffered to as the 'world's orchard land' .

The river flows through south eastern parts of former USSR close to the china border and drains into sea of Okhotsk. It is 4510 Km long

Holland is also known as Netherlands, which means "Low lands". Dutch Engineers reclaimed considerable part of the seabed by building dykes and pumping out the sea water into canals. Some houses in Holland are below sea level. Belgium has also Low lands  bordering the North Sea and dykes are constructed to control the encroachment of the sea.

It is also the land that accommodates the imports of the port.

Moscow 37o and Los Angeles 118oW show a longitude difference of 155o across the Atlantic and of 205o across the Pacific.

a) joins the Gulf of Mexico and Atlantic Ocean, and touches USA and Bahama Island.

b) joins the sea of Marmara and Aegean Sea, touching Asian Turckey and European  Turkey

d) joins Black sea and sea of Marmara touching Asian Turkey and European Turkey