Trees covered the earth for more than 50 million years before bugs and animals started eating them. Oil formed under oceans and coal formed under land from the huge deposits of wood. No references sorry...
Atomic fireballs, burn those taste buds right off and grow a new set, takes about a month...
Not a doctor, but I have heard; Ivermectin has a short half-life in the body, so count on one dose / one day of action. Takes several days to a week to 'get sick'. If out and about daily; Once a week at the dose per weight for preventative, Otherwise a dose within a day or two of 'exposure'.
Facilitates the transport of zinc ions into your cells. The zinc inhibits virus replication so runaway infection is stopped allowing your body to clean up the virus that remains.