Vocabulary Exercises 72

feelto know by touch
nervousrestless or tense
allowancesomething granted
postcardscards mailed without an envelope
yawnexpression of tiredness
knapsacka backpack
adviceguidance
realisticshowing things as they are
hazefog or cloud
devicean instrument or tool
chemicalsmade form changed substances
ingredientsparts of a mixture
silosstorage towers
mechanicallike a machine
millenniumone thousand years