1. food meaning their source food could no longer be there so they have to search for something else to eat in order for survival
2. weather meaning the weather of which that animal is used to has chnaged for ex.) in Antarctica the weather is getting warmer so the polar bears and pennguins can adapt or die
If the cell is green, that would mean that it contains the pigment of chlorophyll (suggesting that it is a plant cell). In addition, a rigid cell wall means the cell is part of a stronger structure, so it is likely a plant cell.
I'm pretty sure it's earthquakes
They change the air from water vapor (gas) to liquid water. This can produce clouds you see in the sky or dew or fogs.