Why did stock prices drop so quickly in 1929?

Which of the following is a claim about ancient rome that a historian could build san argument around

The second continental congress: a. made provisions for a continental army with george washington as commander-in-chief b. adopted a “declaration of causes of necessity of taking up arms” c. endorsed the olive branch petition d. all of the above

The map shows latitudes and longitudes of australia. which australian city is located north of the 15°s latitude? perth brisbane melbourne darwin