Drivers were tested on various driving exercises before they had been drinking. they were given alcoholic beverages of their choice. occurred as bals increased.

A steady decline in driving ability

Explanation:

Alcohol consumption impairs the functioning of the central nervous system. The impairment can range from mood improvement to unconsciousness. As the blood alcohol level (BAL) rises the impairment gets severe. Driving is a complex task that requires the central nervous system to function properly.

Any impairment to the central nervous system leads to a decline in driving activity.

when earth is in rotational motion around the sun,it displaces from its place.

when a ball is placed on an inclined surface it does both the rotational and circular motion.

explanation:

.) the observation by semmelweis that more mothers died of childbed fever when their doctors also worked in the morgue