The correct answer is letter B. increase deposition of sediments upstream. The negative effect of using too much water for the irrigation of crops is that it wash out sediments and these sediments are brought down the water streams.
Fix the foundation if that does not wrk find a material too help stabilize the soil hope this helps
Volcanic eruptions can destroy building that store resources, burn trees, kill animals and make land not suitable for farming etc
*kicks down the door*BLITZKRIEG!!!!
chur answer would be B