Which experimental procedure would provide the best evidence for the effect of light on plant growth?(1 point)

Responses

Plant seeds in different soils and expose them to different amounts of light, then measure plant growth.
Plant seeds in different soils and expose them to different amounts of light, then measure plant growth.

Measure plants of the same variety grown in environments that receive different amounts of light.
Measure plants of the same variety grown in environments that receive different amounts of light.

Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.
Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.

Measure plants receiving different amounts of light in their natural environments.

Plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth would provide the best evidence for the effect of light on plant growth. This experimental procedure controls for other variables that could affect plant growth, such as soil type and environmental conditions, and isolates the effect of light on plant growth.

The experimental procedure that would provide the best evidence for the effect of light on plant growth would be to plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth. This experiment isolates the variable of light, allowing for a more controlled and accurate assessment of its impact on plant growth. By keeping all other factors constant, such as soil type and environmental conditions, any differences observed in plant growth can be attributed to the varying amount of light. This procedure ensures that the effect of light on plant growth is specifically tested and eliminates the confounding effects of other variables.

The experimental procedure that would provide the best evidence for the effect of light on plant growth is to plant seeds of the same variety in the same conditions and vary only the amount of light, then measure plant growth.