Question 37

If a plant is exposed to red light, then it will show less growth than natural light.

This statement presents a clear, testable hypothesis that establishes a cause-and-effect relationship between the light color and plant growth, making it the best example of a hypothesis.

A) Dogs like treats

This statement is an opinion rather than a hypothesis. It does not establish a testable cause-and-effect relationship or predict an outcome based on a specific condition, which is essential for a hypothesis.

B) Red is the best color

This statement is subjective and reflects personal preference rather than a testable hypothesis. It lacks the necessary structure to predict an outcome based on variables, which is critical for a hypothesis.

C) If I eat 100 donuts, then I will feel sick

While this statement is conditional and suggests a relationship between eating donuts and feeling sick, it is overly simplistic and lacks specificity regarding the mechanism or broader context needed for a robust hypothesis.

D) If a plant is exposed to red light, then it will show less growth than natural light.

This statement is a well-defined hypothesis that can be tested through experimentation. It specifies conditions (red light versus natural light) and predicts an observable outcome (less growth), making it a strong example of a hypothesis.

Conclusion

The correct answer, option D, is a well-structured hypothesis that can be tested scientifically, establishing a clear relationship between two variables. In contrast, the other options lack the necessary rigor or specificity to qualify as hypotheses, making them unsuitable for scientific testing.