Well, you could start by giving your child a daily dose of probiotics then, exersing, eating more healthy food than junk food, sleep early, and drink lots of water.
Answer: NH3 is a compound containing atoms of Nitrogen and Hydrogen.
Answer:
Snails and clams have hard shells while grasshoppers and dragonflies have none. Snails and clams have soft spines while grasshoppers and dragonflies have none.
Explanation: