Marine food chains at risk of collapse, extensive study of world's oceans finds. ... The acidification of the ocean, where the pH of water drops as it absorbs carbon dioxide, will make it hard for creatures such as coral, oysters and mussels to form the shells and structures that sustain them.
Batteries <span>stop working due to the chemical compound between two poles running out. Also part of metal used for negative pole solved every time battery was used.</span>
Yes it can be.
<span>particle can be a single atom, an atom makes the smallest possible particles.. </span>
Helium i believe is the answer
