Which of the following is the hardest substance?
A. Copper
B. Diamond
C. Iron
D. Silicon
A. Copper
B. Diamond
C. Iron
D. Silicon
A. Neon
B. Argon
C. Xenon
D. Nitrous oxide
A. Ice
B. Water
C. Benzene
D. Chloroform
A. Dermatologist
B. Orthopaedist
C. Dentist
D. Nurologist
A. 300 gram
B. 350 gram
C. 400 gram
D. 450 gram
A. Computed Tomography Scan
B. Computer Topography Scan
C. Computed Topography Scan
D. Computer Tomography Scan
A. Liver
B. Kidney
C. Spleen
D. Lungs
A. 7cm to 8cm
B. 8cm to 10 cm
C. 10cm to 13 cm
D. 13cm to 16cm
A. 150 million years
B. 250 million years
C. 300 millon years
D. 350 millon years
A. Protons
B. Neutrons
C. Electrons
D. Gamma rays