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