Note: the length limits indicate the upper bound. You can easily
write good answers using less space, and should try to do so. 


Exercise 1: only trees, no length requirement 

Exercise 2: One and a half pages, single spaced. 

Exercise 3: only trees, no length requirement 

Exercise 4: Half a page, single spaced, plus a tree. 

Exercise 5: Half a page, single spaced. 

Exercise 6: 
Task 1: Half a page, single spaced.
Task 2: Half a page, single spaced.

Exercise 7: one page, single spaced.