Unlike snow’s later work on cholera, his research on anesthesia was experimental in nature. what general skills of experimental design were necessary to plan eff ective experiments to test dosage measuring and delivery systems for anesthesia, or to investigate the properties and eff ects of diff erent drugs?

trial and error, some engineering abilities.

Explanation:

The general skills required for research projects on anesthetic dose measurement and delivery systems or for investigating the properties and effects of different medications are trial and error, some engineering skills. The so-called trial and error ability will allow you to try a method or system, see if it works and its effects, and not work or produce the desired effects by trying a new method. Engineering abilities will be required to manage these attempts and establish a logical sequence between them.

the plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. the magma then emerges as lava from the boundary and cools, creating a new crust.

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