Answer:
<em>Pre-operational Stage</em>
Explanation:
The <em>pre-operative phase is the second phase in the cognitive development theory of Piaget.</em> This phase starts around 2 years of age when kids begin talking and lasts until about 7 years of age.
Children <em>start engaging in symbolic play during this phase and learn to control symbols. Piaget observed, however, that concrete logic is not yet understood.</em>
Dr. Xiong's research is best described as <u>Cross-Cultural research</u> because she is comparing aspects of populations of Uganda and Denmark.
<h3>What is a
Cross-Cultural research?</h3>
Basically, this is a research that compare the human behaviors across two or more cultures.
Furthermore, the research involves the observation of similarities and differences in psychological processes, behavior, values, practices etc different societies or multiple cultures.
Read more about Cross-Cultural research
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Answer:
dynamo
Explanation:
Device used to convert mechanical energy into electrical energy is called dynamo.
