Some estimates put the first human settlements in the Amazon at 32,000 to 39,000 years ago. Since that time, Amazon people have developed lifestyles that are well integrated with the benefits and constraints of rainforests.
An estimated 7-10 million Amerindians (the term for American Indigenous peoples) lived in American rainforests, half of them in Brazil, at the time of European arrival. When Pizarro arrived in Peru, more land was under cultivation and more food was being produced in the Andean region than today.
Answer: the task demands
Explanation:
According to Land and Hayhoe, thee most important factor in determining fixations when a person is making a peanut butter sandwich is the task demands.
It should be noted that the stimulus colors, orientations or the stimulus contrast levels isn't the appropriate answer.
If tectonic plates collide it forms convergent plate boundaries. if tectonic plates separate they form divergent plate boundaries
After looking at the photograph given above, one sedimentary rock that probably metamorphosed to form rock on unit 6 is called limestone. You can also use the sedimentary rock called dolostone. Both will be acceptable answers to this question.