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