How to do Exercise 2 on page 20?
jak zrobić ćwiczenie 2 na stronie 20?

It is the doctrine that the us had the right and duty to expand throughout north america. it just means they believed they had the right to expand westward and they did! they stated with the 13 colonies and then they kept moving gaining different territories throughout the years

Water flows along the east coast and across the western tropical pacific towards south america, while they both are directed towards that way,  el niño does not directly affect the southern flow of water along the coast. 

Asmall closed hole formed in an outwash plain or moraine. forms when a  glacier retreats then remains stationary.