The probable hypothesis would be - If a bottle having less water in it, then the note played is lower due to the presence of the more air to move around.
Explanation:
The hypothesis is an idea that is able to explain some problems with prior knowledge or experiments but it is not able to prove it. The hypothesis is not just a guess or it is also not a well-sustained explanation it is in between.
In this experiment, a hypothesis can be formed on the base of the water quantity present in the bottle as we already know the more air present in some instrument or in a medium the lower the sound it will produce.
Thus, the correct answer would be - If a bottle having less water in it, then the note played is lower due to the presence of the more air to move around.
Speciation is the process by which new species form. It occurs when groups in a species become reproductively isolated and diverge. In allopatric speciation, groups from an ancestral population evolve into separate species due to a period of geographical separation.
