`[["Specific Gravity",[],"Unitless","Pcf/Pcf"],
["Angles",[],"milliradians","radians","degrees","seconds","minutes","grads", "right ascension hours minutes and seconds"],
["Distance",[],"inches","feet","yards","miles","millimeters","centimeters","meters","kilometers"],
["Area",[],"square inches","square feet","square yards","square millimeters","square centimeters","square meters","square kilometers"],
["Volume",[],"pints","quarts","gallons","cubic feet","cubic yards","square yard inches","milliliters","liters","cubic meters"],
["Mass",[],"slugs","kilograms","grams","milligrams"],
["Force",[],"pounds","Newtons"],
["Work",[],"foot pounds","Joules","Kilowatt hours","electron Volts","BTUs","calories","Calories"],
["Power",[],"foot pounds per second","Watts","KiloWatts","Joules per second","Horsepower","ampere Volts"],
["Pressure",[],"pounds per square inch","pounds per square foot","Pascals","KiloPascals","MegaPascals","Joules per cubic meter"],
["Torque",[],"foot pounds","Newton meters"],
["Density",[],"slugs per cubic inch","slugs per cubic foot","grams per milliliter","grams per cubic centimeter","kg per liter","kg per cubic meter"],
["Unit Weight",[],"pounds per cubic foot","pounds per cubic inch","Newtons per cubic meter"],
["Temperature",[],"Kelvin","Degrees Celcius","Degrees Farenheit"],
["Electrical Current",[],"amperes","milliamperes"],
["Lumnosity",[],"candelas","candlepower"]]`
`shuffle(WORDS,5)`
`SELECTIONS[0].length`
`SELECTIONS[0][randRange(2,SELECTIONS[0].length-1)]`
`SELECTIONS[1][randRange(2,SELECTIONS[1].length-1)]`
`SELECTIONS[2][randRange(2,SELECTIONS[2].length-1)]`
`SELECTIONS[3][randRange(2,SELECTIONS[3].length-1)]`
`SELECTIONS[4][randRange(2,SELECTIONS[4].length-1)]`

This exercise will help you to attain fluent recognition of basic units used to describe various concepts.

Which selection are units that describe `SELECTIONS[0][0]`?

`ANSWER`

`DISTRACTOR_1`
`DISTRACTOR_2`
`DISTRACTOR_3`
`DISTRACTOR_4`

`DISTRACTOR_1` is not the correct answer. These are units for `SELECTIONS[1][0]`` `

`DISTRACTOR_2` is also not the correct answer. These are units for `SELECTIONS[2][0]`` `

`DISTRACTOR_3` is also not the correct answer. These are units for `SELECTIONS[3][0]`` `

`DISTRACTOR_4` is also not the correct answer. These are units for `SELECTIONS[4][0]`` `

`ANSWER` is the correct answer.