Answer:
Farms
laundry detergents
pet wastes
Water treatment plants
Explanation:
Because its not construction materials or mining wastes.
The answer you are looking for is right here, Gogli Apparatus is the answer
Answer:
Q2->They all form acids when combined with hydrogen. They are all fairly toxic. They readily combine with metals to form salts.
Q3->Because their outermost orbit is complete. In Mendeleev's original periodic table there was no place reserved for noble gas. They were discovered in end of 19th century. So Mendeleev created zero group without disturbing original periodic table.
Explanation:
It will be better for the population
