Most inorganic substances do not contain carbon, but there are a few exceptions. in these cases, carbon is not
bonded to which element?
calcium
hydrogen
oxygen
nitrogen

"a.) well–developed vascular system."

correct answer: false

while planning water activities, it is very important to consider the weather, because if we do not plan and are going for a surf, then it might be that the hurricane came and drown us or may carry us to long distance from where we can not come back. there are many reasons to take information about the weather when we are planning any water activities.

hence, the correct answer would be false.