Answer:
The four elements are oxygen, hydrogen, carbon, nitrogen.
So it will be O A.N2.
Explanation:
They are versatile elements, capable of producing a vast array of chemical compounds, but it also has to do with the fact that they are among the most abundant elements in the universe.
Answer:
were you there at the crime scene?
Explanation:
Answer:
PCBs and DDT are chemicals that were banned more than 30 years ago, but our air, water, land, and bodies are so contaminated that decades of cleanup efforts have yet to eliminate their threats to our health. Today, food is one of the most likely exposure routes to PCBs.
Near the equator cause if you go to far south then it starts getting colder
