A) A gasoline burning automobile B) A coal burning generator C) An automobile that operates on fuel cells D) A wood burning stove
A) The sun B) Heat from within the Earth's crust C) The moon D) Running water
A) The number of clouds in the sky B) The speed of the wind C) The state of the atmosphere at any particular time D) The amount of moisture in the air
A) Rotation B) Magnetic Field C) Atmosphere D) Temperature
A) The sun protects life on Earth B) The sun damages life on Earth C) The sun powers life on Earth D) The sun causes plants to wither and die
A) The tilt of the Earth on it's axis B) The Earth's changing distance from the sun C) Changes in the sun's intensity D) The Earth's rotation
A) It reflects light from stars B) It makes it's own light C) It reflects light from Earth D) Because it reflects sunlight
A) High plateaus B) Deep craters C) Mountains D) Sunken plains, or seas
A) Light B) Heat C) Electricity D) Motion
A) Motion and time B) Temperature and pressure C) Lift and thrust D) Wind and rain |