WHICH IS A MAJOR DRAWBACK TO THE USE OF HYDROGEN POWER? A. burning hydrogen releases greenhouse gases.

B. hydrogen power creates toxic waste that must be stored forever.

C. the use of fossil fuels is required to create pure hydrogen.

D. hydrogen may run out in the next 100 days.

a maximum–minimum thermometer. the scales are fahrenheit on the inside of the u and celsius on the outside. the current temperature is 23 degrees celsius, the maximum recorded is 25, and the minimum is 15, both read from the base of the small markers in each arm of the u tube. the bulbs are hidden by a plastic housing.

six's thermometer is a registering thermometer which can record the maximum and minimum temperatures reached over a period of time, for example 24 hours. it is used to record the extremes of temperature at a location, for instance in meteorology and horticulture. it was invented by a british scientist james six, born in canterbury, in 1780; [1] the same basic design remains in use.

it is also commonly known as a maximum–minimum, minimum–maximum, maxima–minima or minima–maxima thermometer, of which it is the earliest practical design.

the thermometer indicates the current temperature, and the highest and lowest temperatures since last reset.

these include the fossil fuels, oil, natural gas, and coal and nuclear energy. hope this ! ^.^

-ella