Answer:

Explanation:
Some of the inventions in golden era of "islam":
- Algebra
- Toothbrush
- Surgery
- University
- Flying machine
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Example: Hector wakes up suddenly in great distress, his roommates asks him what is wrong but Hector cannot explain what happened.
Answer:
sample
Explanation:
sample in research experiments means when researcher can not include and involve whole population than he or she choose representative sample which represent whole population, and result of experiment can be generalize whole population. Sample must have some characteristics like it must be random and not biased so results get not affected.
Crown corporations have been most common in sectors such as transportation, telecommunications, utilities and power generation, but they extend into many parts of the economy, including alcohol sales, gaming, finance, business development, insurance, agriculture and culture
A school schedule that begins at
9:00 am and ends at 4:10 pm would be the best fit for adolescent sleep
patterns. Some adolescents may take sleep order at some fact throughout adolescence.
Defining the outline and practice of sleep amongst adolescents could be valuable
to institute a lasting sleep hygiene program among adolescents. Behavioral
sleep difficulties describe as sleeping difficulties that do not have a
physiological aetiology but somewhat a behavioral are stated in amid 20% - 40%
of children and adolescents. These sleep imperative are characterized as
behavioral insomnia of childhood in the international classification of sleep
disorders.
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