What is a positive feedback?

Which pattern most likely came from a gunshot and which one was produced from a blow on the head? explain your answer?

Texas has an impending storm, and california is experiencing a water crisis. match the technologies with the state that can use them to reduce the effects eddies natural hazards. texas is the storm cellar and the wood that is crisscrossed. california is the dam and the storage tanks

Match each symbol with its description.