Your answer is electricity, light and magnetism. They can be determined usinf elecromagnetic radioation.
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Even the energy can't be detected by our eyes, there are a lot of measurement instruments that can measure infrared (IR), gamma rays, radio or X-rays or ultraviolet (UV)</span>
Rain fall which is called run off
According to Hooke's Law formula. The force is proportional to the displacement of the spring. I believe
Answer:
Infra red waves, visible light waves,
Explanation:
In solid, atoms are compact. Hence they have definite shape and volume. Hence it is true.
