What is this phenomenon called?  The plant cells are in a (Hypotonic, Isotonic, Hypertonic) environment?

What is the problem in this article? what solution does the article propose?

Which plate boundary causes plates to collide forming mountain ranges, volcanoes, and island arcs? give an example of this type of plate boundary. 2. at which plate boundary do rifts and mid-oceans ridges form? give an example of this type of plate boundary. 3. at which plate boundary do plates slide past each other while moving in opposite directions? give an example of this type of boundary.

Which environmental change would most likely result in bullfrog offspring that are able to store more water than bullfrogs in previous generations?