1) Does the Earth's moon count as a "world"? 2) A "habitable" world is a world where there might possibly be

3) Are we only interested in intelligent life, or complex life, or any life?

4) Would fish be considered intelligent life, or complex life, or simple life?

According to the diagram, what sources contribute to the phosphorus found in soil? according to the diagram, phosphorus found in soil contributes phosphorus to what other sources?

Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?

Movement that is like a t a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. transfers energy from one location to another a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave