General Knowledge Quiz 05

 (1) All radioactivity is man-made.

•  false
•  true

(2) The Earth, Sun, and all of the Solar System are part of the Milky Way galaxy. What is the shape of the Milky Way?

•  corkscrew
•  flattened spiral
•  sphere
•  cube
•  dish

(3) An igneous rock is one that:

•  fell to Earth as a meteorite
•  formed from cooled lava or magma
•  formed as a result of pressure and temperature
•  formed from compressed sediments

(4) Sunscreen protects your skin from which form of radiation?

•  microwaves
•  ultraviolet light
•  visible light
•  gamma rays
•  x-rays

(5) Cells of bacteria (prokaryotes) differ from cells of plants and animals (eukaryotes) in which way?

•  All bacterial cells are unable to move.
•  Bacterial cells do not have DNA.
•  Only bacterial cells may have a cell wall.
•  Bacterial cells do not have organelles.

(6) Air is a mixture of gases. Most of the Earth’s atmosphere consists of which gas?

•  nitrogen
•  oxygen
•  hydrogen
•  carbon dioxide

(7) NaCl is the chemical formula for which common chemical?

•  sodium bicarbonate or baking soda
•  water
•  sucrose or sugar
•  sodium chloride or table salt

(8) The second planet from the Sun is:

•  Mars
•  Earth
•  Mercury
•  Venus

(9) Frogs are vertebrates, which means they have backbones. To which group of vertebrates do frogs belong?

•  amphibians
•  reptiles
•  bony fish
•  mammals
•  birds

(10) Which of the following is in order of increasing size?

•  atoms, electrons, molecules
•  molecules, electrons, atoms
•  atoms, molecules, electrons
•  electrons, atoms, molecules