Explain a real world natural hazard the that would affect humans and increase risk

What does the word submerged mean in the following sentence? after it rained for three days in a row, the streets were completely submerged.

Adisadvantage of adding a vegetarian hot-food option to a school lunch menu is that it would a. force all students to change their diets. b. eliminate a meat option from the menu. c. only some students on special diets. d. increase the amount of food that is wasted.

How does the bare soil surface type affect the amount of runoff