8. What made the Gangetic Plain a better agricultural land?

In South Asia’s breadbasket, farmers practice zero-tillage to reduce costs and grow more wheat. Alternate wetting and drying of rice fields helps cut water consumption by up to 50 percent. Yields of both cereals improve after laser-assisted land-levelling. Farmers save on fertilizer with ‘needs-based’ nitrogen management and use legumes to suppress weeds.

i think the answer is c, rivers.

explanation:

sometimes, borders fall along natural boundaries like rivers or mountain ranges. for example, the boundary between france and spain follows the crest of the pyrenees mountains. for part of its length, the boundary between the united states and mexico follows a river called the rio grande. the borders of four countries divide africa’s lake chad: niger, chad, cameroon, and nigeria.