Device to be called
Explain what qualitys
computerised device.

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Answershe should not have multiplied the sulfur atoms by the subscript 4

Answer(b) both involve the use of levers;

Year  1936,  lehman predicted that the earths 'inner core' is solid. she observed that the seismic signals during her study were bent and did not pass through instead bouncing back. later it was confirmed that the earth's inner core was solid made up of nickel-iron and had a molten outer core.