Idk but good luck seems hard
Answer:
many
pollution by dumping chemical that are harmful to the animals
littering by plastic
accidentally introducing invasive species
over fishing
it lowers the biodiversity of the aquatic ecosystems living there
Explanation:
If a radical is defined as a molecule with unpaired electrons,then the answer is OH.However,if you take the more general definition(an atom or molecule with unpaired electrons),then OH,O and H are all radicals.<span />
I believe Charles Darwin is known for his theory of evolution. Like how we started as gorillas and slowly adapted and changed into humans. Survival of the fittest is how our traits changed. We adapted to survive better. Without the necessary traits. We died