Q. With respect to Continental shelves, Consider the following Statements:
1.They Provide one of the richest fishing grounds
2.They may form due to submergence of a part of a continent or relative rise in sea level
Select the correct answer using the code given below: 
Answer: C
Notes:
Following are some of the important features of continental shelves- Marine food comes almost entirely from continental shelves.
They provide the richest fishing grounds.
They are potential sites for economic minerals [20% of the world production of petroleum and gas comes from shelves. Polymetallic nodules (manganese nodules; concentric layers of iron and manganese hydroxides) etc. are good sources of various mineral ores like manganese, iron copper, gold etc..]
The shelf is formed mainly due to submergence of a part of a continent or relative rise in sea level and also Sedimentary deposits brought down by rivers.
Source- Article
