Read it carefully and slowly
<u>Evidence of a large glacial lake northeastern Ontario:</u>
The evidences of a large glacial lake in northeastern Ontario are, sand ridges of Rome, relief forms in the plain around the lake in Ontario, the structure of the soil and the glacial remains.
This large glacial lake was named Iroquois which existed approximately 13000 years ago and is said to be enlargement of today's Ontario lake. This was formed because the St Lawrence river was blocked by an ice sheet and it drained towards the south east.
B. Deep currents are driven by density differences, while surface currents are driven by wind and Earth's rotation.
Taiga is a Russian word that refers to an ecosystem characterized by snow and coniferous trees.
In English it is known as Boreal Forest or Snow Forest.
A large part of the Northern Hemisphere is made up of Taiga. Northern Russia, parts of Mongolia, Scottish Highlands, Northern Japan and Northern Canadian Provinces are all covered in Snow Forests.
The climate in these areas are generally cold and dry where a unique habitats has evolved comprising of Bears, Moose, Red Fox, Polar Bears etc.
Your answer is, flood plain.
