True or false the source of a river, such as the Mississippi, is called it’s headwaters

The source of a river or stream is the original point from which the river flows. .The source is the farthest point of the river stream from its estuary or its confluence with another river or stream. Rivers are usually fed by many tributaries. The farthest stream is called the head-stream or head water.

Also, Lake Itasca is the Source of the Mississippi River

Answer = True

1. antarctica2. saudi arabia

Well, a and b together would be negative. b alone would also be negative.