Geography & Environment of Punjab

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1.
Which major canal in Punjab is primarily supplied by water from the Bhakra Dam?
2.
Which city in Punjab is situated at the confluence of the Beas and Sutlej rivers?
3.
Which of the following non-native plant species poses an invasive threat to the wetlands of Punjab?
4.
What is Punjab's total geographical area in square kilometres?
5.
Which is Punjab's largest and smallest district by area?