A gas called Ethylene which is given off by the already ripened fruit speeds the process of ripening for the unripened fruit.
It is constant acceleration since acceleration of free fall occurs near the earth surface
After the forest fire,the burnt wood will be fertilized by microbes which consider as decomposer in the food chain.It doesn't olny decompose dead animals but also organic and inorganic resources.
1 pound = 0.45 kg
Therefore
18 pounds = 18 x 0.45 = 8.1 Kg
But, the dosage is 5 mg per kilogram of the body.
Thus,
5 mg for each of the kg will be
5 x 8.1 = 40.5 mg
Therefore, 40.5 mg Ibuprofen for 18 pounds body weight