What does a theory have to be supported by?

Is a fossil older or younger than a another fossil in a lower rock? Dating is a term in general semantics that means communication is improved if you always specify how your observation was made? What 2 ways causes an object's velocity to change? What is non researchable? Do scientists classify plants and animals using certain charaterisics? Sentence with agitate? How does an experimental group and control group compare? What is supercalafragalisticexpealadotious? What is an example of terminal velocity? What are the scope of nutrition as a science? Principles of organization by lyndall urwick? Foliage or stalks of a plant which are edible? What relation do you find between the weight of the floating body and the waight of water that is displaced? What forms coal oil and gas burning? Linkage studies refer to tracing a particular trait within a family does this mean that twin and adoption studies are a type of linkage study? What type of energy is traveling from the toaster? What Average length of a sentence when using the technique of keeping sentences short and clear? Is it true that a scientific theory is formulated by many scientists over drinks at a convention? Explain why limp carrot sticks become crisp and your fingers becomes wrinkle when placed in hot water? What is the best metric unit to measure the distance from Chicago to peoria?