A southwest, to Northeast movement of air. A drop in air pressure. And warm air behind the front.
You didn't show a picture of the tree so I don't know either
Its a bad idea, because you are taking the saltwater marsh away from the ecosystem... And turning it into a cement covered ground, for more houses... Then the animals (or other things) that live there, will die... and have to find another place to live...
~therefore... The bad thing is, that they shouldnt fill the marsh with dirt, and cement... Because bad things could happen to the creatures that already live there.
The two days of the year on which neither hemisphere is tilted toward or away from the sun is called an equinox, because the equator of the Earth is directly in the center of the sun. This occurs on 20 March and 23 September. Look outside!
Your answer is: equinox.
Have an amazing day!
