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) Heat from within the Earth's crust C) Running water D) The sun
A) The state of the atmosphere at any particular time B) The speed of the wind C) The number of clouds in the sky D) The amount of moisture in the air
A) Atmosphere B) Temperature C) Magnetic Field D) Rotation
A) The sun damages life on Earth B) The sun causes plants to wither and die C) The sun protects life on Earth D) The sun powers life on Earth
A) The Earth's rotation B) The tilt of the Earth on it's axis 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) Deep craters B) High plateaus C) Mountains D) Sunken plains, or seas
A) Electricity B) Light C) Heat D) Motion
A) Motion and time B) Lift and thrust C) Temperature and pressure D) Wind and rain |