Gravity is a must (required) for mass movement, and the presence of water is not necessary. 

The world ocean covers what percentage of Earth’s surface?

Which two processes form most sinkholes?

The zone of aeration:

Pebbles and cobbles would most likely be transported by a river as:

Trade Patterns, two parts (15 points; 10 min)  How are the patterns of international trade, that is the pattern of what different countries export and import, explained? (Please discuss at least three determinants of trade, at length). Two basic models of international trade are the simple trade “openness” model and the gravity model. Please write the equations (as best you can, using parentheses to group variables that reside in the numerator. You may use numbers in place of subscripts – e.g., Y1 and Y2 to represent GDPs for country 1 and country 2) that represent both models, discuss the variables, what information they provide, and discuss important differences among the models. Importantly, what determinants of trade each might overlook.  

If your laptop starts dancing during the exam, you should:

Name three items that are found in the Options dialog box.

 ________ is software used primarily for developing slides.

________ is used to send a copy of an email to a recipient without others on the email being able to see that recipient’s address.