In the picture to the right iron filings have been sprinkled around a bar magnet. The iron filings outline the magnetic field lines, making it visible. Magnetic fields all have a pair of "poles", from which "lines of force" or magnetic field lines appear to originate.
During the Song period, women experienced subordination and social restriction, epitomized by footbinding
More about Song period
The song period or Dynasty is from China's 960-1279CE in comparison to the Tang Dynasty, women's political function and public appearance decreased due to the rebirth of Confucianism. In the Song period, foot binding also became common.
However, women in song period also had new and strengthened property rights, and achieving social mobility and political power was not entirely out of the question. In fact, there are numerous instances of lower class women who succeeded in gaining significant authority by giving the Imperial Court's higher echelons pleasure.
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C: lowering trade taxes since they traded most materials to one another.
Orville Wright piloted the powered airplane.
The correct answer is letter C
Explanation: Conducting scientific experiments is the ideal opportunity to identify the effects of a lurking variable on the response variable. Not all experiments all approved, sometimes performing the experiments are the only way to find out the effects.
