What is true about the particles in a substance? Select all that apply. Particles in a substance move only when they
change state.
The way particles move changes when the
substance's thermal energy changes.
Cooling a substance can cause the substance to
change state.
Particles in all states of matter are arranged in the
same way.
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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.

idk im sorry.

imagine a line passing through the center of earth that goes through both the north pole and the south pole. this imaginary line is called an axis. earth spins around its axis, just as a top spins around its spindle. this spinning movement is called earth's rotation. at the same time that the earth spins on its axis, it also orbits, or revolves around the sun. this movement is called revolution.