Question

5 ,7,9, 11,13,15,17 me se kisko add kare jo 30 aa jaye we can use only one time a number???

Answer 1

The rest of our freshwater is found at the surface in streams, lakes, rivers and wetlands. Groundwater may be near the Earth's surface or as deep as 30,000 feet, according to the U.S. Geological Survey (USGS).