Is it true that enzymes are consumed during a reaction and used up completely

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?

When explaining dominant and recessive traits to a younger family member, they respond, "well chances are i can probably taste ptc, since dominant traits are more common." how might you address this misconception?

Acquired mutations can result from radiation pollution toxins inheritence select all that apply