Noble gases have a complete outer shell meaning they have eight valence electrons (octet rule); having eight electrons makes the atom very stable and unlikely to react because they don't need anymore electrons.
Ultraviolet radiation is the primary cause of sunburns
Answer:
The most common nutrients causing eutrophication are nitrogen and phosphorus. The main source of nitrogen pollutants is run-off from agricultural land, whereas most phosphorus pollution comes from households and industry, including phosphorus-based detergents.
Explanation: