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