His unknown secret weapon was disease.
When Cortez and his army invaded aztecs, a couple of his men were infected with smallpox.
Since the aztecs did not possess any immunity for it, the majority of their people were weakened by the disease, which make it easier for cortez army to conquer their region.
Answer:
This is a longitudinal research.
Explanation:
Longitudinal research refers to a type of research which takes <em>place over time</em>. It centers on the study of the <em>same variables through time</em> in order to observe the variable's changes.
In this case, psychologist study 5, 7 and 9 year olds and then study them again two years later.
The 13th Amendment ended slavery following the Emancipation Proclamation.
“Ending slavery and involuntary servitude, except as punishment for a crime. In Congress, it was passed by the Senate on April 8, 1864, and by the House on January 31, 1865.”
Dawn has an intense phobia regarding blood and needles. dawn may be diagnosed with an anxiety disorder.
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What is a phobia?</h3>
A phobia is a persistent, crippling fear of a particular thing, situation, or behavior. If this dread gets too great, one might take great measures to avoid the source of it.
There are many varieties of phobia, including acrophobia, Transphobia, and agoraphobia depending on the fear.
As Dawn whenever he might see the blood and needle might feel squeamish or dizzy as he has the fear of even seeing it, the phobia is called an anxiety disorder.
Learn more about the phobia, here:
brainly.com/question/2729535
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I do believe that the answer your looking for is letter A. Hope I was able to help good luck!
