Subject: Crude oil
10 general knowledge quiz questions. It should take around 2 minutes to complete all the questions.
Acidity • Air • Always • Balloon • Bicycle • Black • Bread • Brown • Called • Casting • Clothing • Coal • Consuming • Country • Crude • Currently • Density • Diesel • Exporting • Extracting • Gravity • Green • Higher • Less • Made • Main • Mainly • Metal • Mining • Occurring • Oil • Opec • Organization • Pale • Pastries • Pipeline • Plastic • Produce • Product • Refining • Some • Stands • Substance • Sulfur • Toys • Transportation • Transporting • United • Viscosity • World