He was a Persian mathematician, astronomer, philosopher, and poet.
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B) the troops killed pro democracy protesters, most of them kids from university.
The correct answer is:
The children are wearing loose clothing. The children are exposed to dangerous machinery. The children are not wearing any protective gear.
These are some of the dangers these child workers were exposed to.

Multiple factors were involved in the decision of exploration of Mars.
Mars is similar to Earth in size and it is the next planet. Moreover, evidence was present to suggest that liquid water existed, and may possibly still exist, on Mars. All of these factors led to the planet's exploration.
Answer: French and Indian War/Seven Years' War, 1754–63. The French and Indian War was the North American conflict in a larger imperial war between Great Britain and France known as the Seven Years' War. The French and Indian War began in 1754 and ended with the Treaty of Paris in 1763.
Explanation: Plz mark brainlest.