Ribosome would be considered a factory “worker” as they *produce* proteins!
<span>One problem with his atomic theory was that it claimed that all matter is composed of tiny indivisible atoms.</span>
Cu (s) + 2AgNO3 ---> 2Ag + Cu(NO3)2
=13.5 moles Silver Nitrate
The third answer is the one you want. You have to have an adjustable density. All other things being equal, if the tanks you use for holding just water when filled with water will let the sub sink, because the sub is made of a dense metal like iron or steel.
If on the other hand you fill these tanks with air, the net density will be below one and the sub will rise.