Which two cave formations join to form a column?
a. a flowstone and a drapery
b. a soda straw and a drapery
c. a stalactite and a stalagmite
d. a flowstone and a stalagmite

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.

The pacific plate is an oceanic tectonic plate. how did a hot spot and the pacific plate interact to form the hawaiian islands?

What is the famous rainforest in costa rica called?