Answer:
Blue light
Adding 10-20% blue light allowed plants to grow much healthier, with a compact appearance. There is also far-red light which is has wavelengths that are lower than normal red light–similar to near-infrared wavelengths. Far-red light helps the plants produce greater yields.
D. All of the above
There would be new plants and animal life in other locations, the layout of the land varies throughout the world, and there are different climates where soils are formed.
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