Letter A is the correct answer.
Anthropologist believe that few, if any, isolated groups have existed in human history. Recently, in Brazil, an isolated indigenous tribe has emerged from the Amazon forest and made peaceful contact with villagers from the border of Peru. This indigenous tribe has got its own way of communicating and can act in a very strange way but is very much aware of the presence of outsiders.
Retrograde amnesia is the inability to recall past memories while anterograde amnesia is the inability to create new memories. Read the full article below for the explanation.
Answer:The interaction between two like-charged objects is repulsive. ... Positively charged objects and neutral objects attract each other; and negatively charged objects and neutral objects attract each other.
Explanation:
The correct answer is Try to hand him a large object that will make his arms open towards her in the same motion as a bear hug
From the place of the cognitive perspective, the understanding of mathematical ideas is not apprehended only through the concepts of pure mathematics, it would be easier to look in the precursor authors for what motivated them to think and develop their theories, what they should have in mind, when they discovered / created their theories / mathematical bases and, how they understood that mathematical knowledge for them. It is important to note that such aspects are never taken into account when teaching / learning some mathematical theory.