1. malaria 2. rivers had terrible waterfalls..too dangerous...until the steam engine was invented it was incredibly dangerous 3. deserts....they didn't know how to travel through the deserts and find an oasis which made it very difficult to travel through
Answer:
Santa Anna signed a treaty with Texas
Explanation:
<span>US gained territory in the Pacific Ocean.
The Spanish-American War is the beginning of the imperial era in US history gaining their first territories from the war.
The US gained Puerto Rico, Guam, and the Philippines from the Spanish-American War and soon after completed the annexation of Hawaii. With colonies in the Pacific and trade connections growing in Asia, the US needed a quick way to move resources and ships from the East coast to these new areas. The canal through Panama made the naval commute shorter and faster as well as safer.</span><span />
A The Constitution was amended in the form of the Bill of Rights.
