Spores light enough to float on the breezes were carried thousands of miles from more ancient lands and deposited at random across the bare mountain flanks.
轻到能在微风中漂浮的孢子从更古老的地方被带到数千英里外，随意沉积在光秃秃的山侧。
2
Light pollution is made worse with air pollution, as the small particles that float in the air serve to scatter and reflect the light, compounding the problem.
而空气污染又使光污染问题愈发严重，因为漂浮在空气中的小颗粒通过散射和反射光线，加剧了这一问题。
3
Ice crystals should be plate shaped. They float in the air close to the ground reflecting light back downwards.