1 The sun's rays are strongest during the hours of 10 a.m. to 4 p.m. The sun's rays are also stronger at higher altitudes and lower latitudes (closer to the tropics). Reflection off water, sand, or snow can make the sun's burning rays stronger.  Sun lamps can cause severe sunburn.
Marchantia polymorpha, sometimes known as the common liverwort or umbrella liverwort, is a large liverwort with a wide distribution around the world. It is variable in appearance and has several subspecies.
meranti. any of several species of Shorea, the most important timber genus in tropical Asia, of the family Dipterocarpaceae. Meranti is an important emergent tree of the tropical forests of Asia.The wood is light to medium weight, and widely used for light construction and more importantly for veneers.eranti. any of several species of Shorea, the most important timber genus in tropical Asia, of the family Dipterocarpaceae. Meranti is an important emergent tree of the tropical forests of Asia.