What is the name of this rock? (Optional: what number is it on the Moh's hardness scale?)

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.

In the von thunen model of agricultural land use, what is produced closest to the city epicenter? a. dairy, vegetables, and fruits b. field crops, such as corn and wheat c. beef and other animal products d. wood and lumber

How many structures do prokaryotic cells have in common with the eukaryotic cells? a. 2b. 3c. 4d. 5