Select the correct answer from each drop-down menu.
when european settlers first came to north america, the american indians viewed them the population of the american indians began to decline drastically soon after the arrival of european settlers. the most significant cause for this decline was

first drop down
a threat to their daily life
as trading partners
as gods and magicians

second drop down
the settlers use superior weaponry
increased wars with settlers over land claims
a spread of contagious disease from settlers