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