This is more to do with Bioaccumulation of mercury, where the mercury is absorbed into the issue of animals, and so animals higher in the food chain consume a lot of tissue matter hence increasing mercury content in their system.
Answer:
Both are highly reactive.
Explanation:
A has 1 valence electron D has 3
A is sodium D is aluminum
"Caesium" is the strongest reducing agent in Periodic table.
Hope this helps!
Maybe because gravity has control of each formation of the solarsydtem thats why its just a guess
In three hours and twenty minutes from 1:40 will be 5:00