To determine visually the pH(acidity of basicity) of the solution.
Answer:
A lake I would assume because lakes have a depth to where you cannot see so it’s deep and dark down in lakes!
Allopatric Speciation (alios— other, patria— native land): In this type of species formation, a part of the population becomes geographically isolated from the main population. ...
• Sympatric Speciation (sym— together, patria— native land): ...
• Parapatric Speciation: ...
• Quantum Speciation:
Some bacteria have developed a resistance to Cipro.
It might be water molecules