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