The unit is the Watt. S.I. unit = W
You get dizziness, headache, trouble concentrating and blurred vision
Plants make seeds that can grow into new plants, but if the seeds just fall to the ground under the parent plant, they might not get enough sun, water or nutrients from the soil. Because plants cannot walk around and take their seeds to other places, they have developed other methods to disperse (move) their seeds. The most common methods are wind, water, animals, explosion and fire.
Energy in a system is doing work such as kinetic and potential energy, that helps things move. Also more such as chemical, heat, thermal, etc.
