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