For each example, specify whether the two structures are resonance contributors to the same resonance hybrid

Can someone me with this and tell me what’s fracking and what does it have to do with carbon, carbon dioxide, or fossil fuels?

Drag each label to the correct location. each label can be moved more than once match the properties with the subatomic particle

All but one describes an effect of aging on the digestive system. a) decreased acid secretion b) decreased elasticity of stomach c) capacity to resist damage decreases d) food remains in stomach for less time