Question

what is the main reason for the tension between countries that share access to the nile river?
disputes over who controls trade along the nile
competition for water needed for agriculture and electricity
disagreements over building roads along the nile
conflict over fishing rights

Explanation:

Countries sharing the Nile often have high - demand for water for agriculture and electricity - generation purposes. Water is a scarce resource in the region, leading to competition.

Answer:

B. Competition for water needed for agriculture and electricity