Saccharine is made up of __________?
Saccharine is made up of __________?
A. Toluene
B. Phenol
C. Propane
D. None of these
A. Toluene
B. Phenol
C. Propane
D. None of these
PSR J0108-1431 is the closest known ______________ to Earth?
A. Black hole
B. Red giant
C. Quasar
D. Pulsar
A. Hydrogen
B. Helium
C. Nitrogen
D. Carbon
A. Gypsum
B. Granite
C. Chromium
D. Lime-stone
A. Heart
B. Liver
C. Lungs
D. Brain
A. Carbon
B. Helium
C. Methane
D. Nitrogen