neurotransmitters is the answer
The same principle apply to stereo microscopes, a 10X eye piece combined with a 4X objective lens will produce 40X magnification.
I would say C because it makes the most sense.. good luck!
The 1819 Act was enacted to limit the number of hours children work in factories (12 hours and no night working) and the abolishion of employment of children less than 9 years old. This was necessitated by the negative impact of the factories' conditions on these children's long-term health, during a time when children were allowed to work.
