Which physical change is represented by the diagram below?

The answer to your question is deposition

Explanation:

In the picture we can see that molecules are moving fast and after a process they move slower, they change from a gas to a solid state.

a) condensation this answer is wrong because condensation is transformation of vapor into gas and does not happen in this picture.

b) deposition this is the correct answer

c) evaporation matter changes from liquid to gas, then this answer is wrong.

d) sublimation matter changes from solid to gas in the picture happens the opposite.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.