Answer:
Cnidarians are not considered to have coelm ecause they are diploblastic, so they don't have any mesodermic tissue.
A. the temperature at which the water vapor will condense
C. When you take a step, the ground pushes back on your foot with the same amount of force. If it pushed back with less, your foot would go through the floor; if it pushed back with more, it would actually push your foot off the ground. But they're in opposite directions; your foot pushes down, while the ground pushes up.
Hope this helps!
The answer is A because it is not formed from decaying marine animals.
Factories, cars and cigoretes.
All of these things are polluting the air cuasing it to heat up more which is cuasing global warming
