(a) Sad (
b) Gloomy
(c) Joyful
(d) Angry
(a) Sad (
b) Gloomy
(c) Joyful
(d) Angry
(a) I went to the store; however, they were closed.
(b) The movie was long; it was also boring.
(c) Pizza is delicious; I love it.
(d) All of the above.
(a) The flowers in the vase are beautiful.
(b) The team have won the championship.
(c) Neither of the options are correct.
(d) We need to go to the store.
(a) Bringed
(b) Brought
(c) Bringen
(d) Brug
(a) Green engineering
(b) Environmental engineering
(c) Biochemical engineering
(d) Petrochemical engineering
(a) Pressure gauge
(b) Relief valve
(c) Rupture disk
(d) All of the above
(a) Distillation
(b) Absorption
(c) Adsorption
(d) Chromatography
(a) Ceramic
(b) Polymer
(c) Composite
(d) Metal
(a) Ethanol
(b) Gasoline
(c) Diesel
(d) Natural gas
(a) Calcium carbonate (CaCO3)
(b) Calcium oxide (CaO)
(c) Calcium sulfate (CaSO4)
(d) Silicon dioxide (SiO2)