It means that it is increasing speed on the chart
It's from the Hawaiian language and means the words "shiny, glassy surface, and smooth". The type of lava you want to know is Pahoehoe lava. Lava tubes are usually floored with it.
Hope this helps! :-)
This statement is true. Early land animals indeed had gills as well as lungs. It is generally known that amphibians breathe through their skin, like how the lungs needed the skin for its respiratory. Fish have gills for breathing while mammals do have their nasal cavity and lungs for their gas exchange.
I think it depends on what kind of reaction are you trying to figure out but all can be correct answer
