A. Decomposition
B. Combustion
C. Cracking
D. None of these
Everyday Science
The volume of an atom is calculated by using:
A. Atomic mass and density
B. Atomic charge and energy levels
C. Atomic radius and formula for volume of a sphere
D. None of these
Pollen grains are produced by:
A. Ovary
B. Stigma
C. Petal
D. Anther
Soda water was invented by:
A. Tivadar Puskas
B. James Leonard Plimpton
C. Petrache Poenaru
D. Joseph Priestley
Study of the evolution of man as an animal:
A. Chronology
B. Anthropology
C. Archaeology
D. None of these
Radioactivity can be detected by use of:
A. Calorimeter
B. Palometer
C. Geiger counter
D. None of these
ECG term is associated with:
A. Brain
B. Heart
C. Ear
D. None of these
Which of the following is used in balloons and airships:
A) Helium
B) Argon
C) Xenon
D) None of these
The acid used in a car battery is:
A) Nitric acid
B) Sulfuric acid
C) Hydrochloric acid
D) None of these
Solid can be converted directly to the gaseous state. This process is known as:
A) Diffusion
B) Evaporation
C) Condensation
D) Sublimation