The answer is the option B) hydrosphere.The prefix hydro means water and
so the name hydrosphere is the term used to refer to all the bodies of
water in the Earth, including oceans, groundwater and
glaciers.Atmosphere refers to the gas layer, biosphere to the regions
where there is life and geosphere refers to all the layers in Earth.
Dune deflation hollows are where wind has removed sand down to a level where a layer of particles too heavy for the wind to move (an armoured surface) stabilises the sand and prevents the surface being lowered further.
A crevasse is a deep, wedge-shaped opening in a moving mass of ice called a glacier. Crevasses usually form in the top 50 meters (160 feet) of a glacier, where the ice is brittle.
a mass of rocks and sediment carried down and deposited by a glacier, typically as ridges at its edges or extremity.
