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