Geography · X-Factor Notes
Important World Lakes revision notes for UPPCS Prelims.
12 revision facts
| Concept | What to remember | Asked in UPPCS |
|---|---|---|
| Largest Lake (Area & Volume) | Caspian Sea (Eurasia) is the largest lake in the world by both area and volume. It is a saltwater lake. | U.P.P.C.S. (Spl) (Pre) 2008 |
| Deepest Lake | Lake Baikal (Siberia, Russia) is the deepest lake in the world, reaching 1642 meters deep. It is a natural lake. | U.P.P.C.S. (Pre) 2002, 2015; U.P.P.C.S. (Mains) 2011 |
| Oldest Lake | Lake Baikal is the world's oldest freshwater lake (more than 25 million years old). | U.P.P.C.S. (Pre) 2015 |
| Largest Freshwater Lake (Area Sequence) | The decreasing order of area of major lakes is: Superior ($82,097 \text{ sq km}$) > Victoria ($68,870 \text{ sq km}$) > Baikal ($31,500 \text{ sq km}$) > Great Bear ($31,153 \text{ sq km}$). | U.P.P.C.S. (Pre) 2016 |
| Concept | What to remember | Asked in UPPCS |
|---|---|---|
| Lake Entirely within USA | Lake Michigan is the only one of the five Great Lakes of North America that lies entirely within the territory of the U.S.A.. | U.P.P.C.S. (Mains) 2015, 2017 |
| City on Lake Superior | Duluth is the second largest city situated on the shore of Lake Superior in North America. | U.P.R.O./A.R.O (Mains) 2014 |
| Niagara Falls Location | The Niagara Falls is located between Lake Ontario and Lake Erie. | U.P.P.C.S. (Mains) 2011 |
| Finger Lake Region | This region refers to a series of small lakes located in the northwest of New York, U.S.A.. | U.P.P.C.S. (Mains) 2013 |
| Concept | What to remember | Asked in UPPCS |
|---|---|---|
| "Land of a Thousand Lakes" | Finland is known as the 'Land of one thousand lakes' (or 'Garden of lakes') due to having approximately 187,888 lakes. | U.P.P.C.S. (Mains) 2014; U.P.P.C.S. (Mains) 2015 |
| Lake Onega | This lake is located in northwestern Russia. It is the second-largest lake in Europe after Lake Ladoga. | U.P.P.C.S. (Pre) 2023 |
| Aral Sea Contraction | The Aral Sea has shrunk immensely/dried up in the recent past primarily due to human activities. | U.P.P.C.S. (Excluded: IAS 2018) (Highly relevant fact based on context, although citation is excluded) |
| Lake Malawi Location | Lake Malawi is located in Africa, not Asia. | U.P. R.O./A.R.O. |
