OBJECTIVE FORESTRY

Detailed explanation-1: -Debris in the glacial environment may be deposited directly by the ice (till ) or, after reworking, by meltwater streams (outwash). The resulting deposits are termed glacial drift.

Detailed explanation-2: -outwash, deposit of sand and gravel carried by running water from the melting ice of a glacier and laid down in stratified deposits.

Detailed explanation-3: -Sediments transported and deposited by glacial ice are known as till. Subglacial sediment (e.g., lodgement till) is material that has been eroded from the underlying rock by the ice, and is moved by the ice. It has a wide range of grain sizes, including a relatively high proportion of silt and clay.

Detailed explanation-4: -Outwash plains and eskers form due to the flow of meltwater in front of (outwash plains) or beneath (eskers) that glacier ice. They are composed of glacial sediments that have been reworked by flowing water.

Detailed explanation-5: -Glacial till is the collective term for all the material carried by the body of the ice as it flows over land, while glacial outwash is restricted to the particles carried by the water arising from the melting of glacier ice.