A concept map can be things such as venn diagrams, double bubbles, flow maps, circle map, t-chart, etc. Choose one you think would work best to show the 3 rock types. I personally would choose something similar to a t-chart and divide it into different sections to make it work.
Can be methan.
Due to the decomposing process, methan is released into the air and it can be collected in some special tanks
Rain and thunderclouds are found with high pressure
It has no nucleus and no membrane bound organelles
