After observing that frogs live in clean water but not in polluted water, researchers state that "polluted water kills frogs." This simple statement is an example of
A) scientific inquiry.
B) biological evolution.
C) a prediction.
D) a hypothesis.
E) a fact.

Question

Quizplus · Accepted Answer

The statement "polluted water kills frogs" is a hypothesis – a proposed explanation or prediction based on observations and prior knowledge. It can be tested through further observation and experimentation.

After Observing That Frogs Live in Clean Water but Not