How could a massive chunk of ice carve out valleys and create lakes?

How do oceanographers measure the salinity of ocean water?

The incident command system (ics) is: a. most applicable to the management of complex incidents that extend over many hours or days. b. a military system used in domestic incidents to ensure command and control of federal resources. c. a standardized management tool for meeting the demands of small or large emergency or nonemergency situations. d. a relatively new approach created based on the lessons learned from hurricane harvey disaster operations.

Aside from english, what other language is widely spoken in canada?