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