SSC MTS EXAM

Detailed explanation-1: -Valley glaciers sometimes flow through narrow inlets (fjords) into the ocean. They over-steepen the walls around them, as they do when carving u-shaped valleys. Thus, fjords have tall, steep walls like glacial valleys, but their floors are below sea level and thus are inundated with ocean water.

Detailed explanation-2: -A fjord, as the Sognefjord, is per definition a glacially overdeepened valley, usually narrow and steepsided, extended below sea level and naturally filled with seawater.