If a mouse and a small lizard of the same mass (both at rest) were placed in experimental conditions under identical environmental conditions which would consume oxygen at a higher rate? what?

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.

your answer is going to be physical weathering