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