Answer:
I am guessing The second Cause only petroleum stay in the top of water
An open fracture is most accurately defined as a fracture in which the overlying skin is no longer intact. A fracture is normally the break in the continuity of the bone. It is also called a compound fracture, in which the fracture is an open wound or break in the skin near the site of the broken bone. Immediate treatment for an open fracture focuses on preventing infection at the site of the injury.
Answer:
Pressure is data on, well, pressure. Pain is data on damage being caused.
Answer:
I don't know exactly what the growth of lichens symbolizes in general, but I found the information about what does it mean for California state:
In 2016, according to The Mercury News (mercurynews dot com), Lace Lichen
becomes state symbol of California. The president of the California Lichen Society, Shelly Benson, said: " Lichens are widely overlooked. Our main mission was really to create more awarness about lichens and their role in the ecosystem."
As Lichen, widespread and may be long-lived, was chosen for a state symbol, its growth may symbolize the increase of state strength.
Explanation: