A. Carbon Monoxide B. Sulfur Dioxide C. Carbon Dioxide D. NitrogenThe colour of the sky is blue due to _____ of light.
A. Reflection B. Scattering C. Refraction D. DiffractionOne US barrel of oil is equal to:
A. 42 litres B. 3.785 liters C. 158.987 liters (42 gallons x 3.785 liters) D. 3.785 gallonsDolly is the name of the
A. First cloned sheep B. First cloned monkey C. First test-tube baby D. First human fossil
SI PCD-17Steel is an alloy of
A. Zn + Sn B. Fe + C C. Cu + Zn D. Cu + SnBronze is an alloy of
A. Zn + [...]