What clothing should we wear to get better protection from the sun 穿甚么衣服能获得较佳的防晒效果?
They produce many leaves , so they provide shade protection from the sun 它们有很多叶子,所以可以提供抵御太阳的遮蔽保护。
These peaks rise through the earth ' s atmosphere so there is less protection from the sun ' s powerful burning rays 这些山顶都超过了地球的大气层,因此对于太阳射线的防护大大减少。
Lastly , dark clothing is more effective in filtering out uv than light - coloured clothing , giving better protection from the sun 最后,深色的衣服一般可滤去较多的紫外线,故防晒效果会比浅色衣服好。
The emerald ash borer has destroyed trees in the middle west and as far east in the united states as maryland . the insects have also spread as far north as ontario canada . ash trees are popular , they grow well in heavy clay soils and they can survive ice storm well . they produce many leaves , so they provide shade protection from the sun . and in the fall , the leaves turn a beautiful golden and purple 这种翡绿色的灰虫已经美国中西部的树和远到马里兰的东部.这种昆虫也传到了远到加拿大安大略湖北部.灰树是很流行的,它们能在重粘土里很好的生长并且他们能在冰暴天气生存.它们能产生很多树叶,因此它们能提供荫凉处.在秋天,叶子变得漂亮的金色和紫色