In order for something to be collectively what must be present?

What is a phase microscope? Which type of air can hold more water vapor-and-why? Who helped support Texas after hurricane Ike hit? What is the direction of a glaciers movement indicated by? Why does the Nurturing Center release one of every set of identical twins? Is Photosynthesis food production in organisms with chlorophyll? What kind of speaker wire should you use? What can you put on an outline of global warming? Should manager attempt to motivate employees with different ethnic backgrounds all in the same manner? Can a nerve fibre and nerve both carry sensory and motor impulse Why? What is the definition of Natural Evil? What type of biome are you most likely to encounter 30 degrees north or south of the equator? What color suggests neutrality? What does nomadic herding do? What will happen if a element burns? What statement most correctly describes the role of a connecting protein? What is one form of precipitation? Muscles are only able to pull they never push.? Why phosphoric acid is not reducing agent? What is the process called that entails large portions of the earth's mantle to be adrift on the molten interior of the planet?