Each statement will be discussed before arriving at the final answer:

1. Some microorganisms can grow in environments with a temperature above the boiling point of water. This statement is correct. Certain types of microorganisms, known as extremophiles or thermophiles, can in fact thrive in exceedingly high-temperature environments. Some examples can be found near underwater volcanic vents where the temperature can exceed the typical boiling point of water.

2. Some microorganisms can grow in environments with a temperature below the freezing point of water. This statement is also correct. Psychrophiles are types of microorganisms that can grow and reproduce in low temperatures, well below the freezing point of water. These organisms are found in Arctic and Antarctic regions or high altitude areas.

3. Some microorganisms can grow in highly acidic environments with a pH below 1. Once again, this statement is right. Acidophiles are microorganisms that thrive under highly acidic conditions. Some species are capable of not just withstanding, but also growing optimally in environments with a pH of 1 or lower, such as acidic hot springs and stomach acid.

So, all three statements are correct.