50be specific or
how do plants and area become suitable for other living organisms including plants?

Plants make oxygen. One of the materials that plants produce as they make food is oxygen gas. This oxygen gas, which is an important part of the air, is the gas that plants and animals must have in order to stay alive. When people breathe, it is the oxygen that we take out of the air to keep our cells and bodies alive.

Hope this helps

Plants are a primary producer, and will provide a good food source for other animals that arrive in the area. Early arrivers such as moss will also help break up and enrich the soil, allowing for larger and more varied types of plants.

Is that good?

It's definitely not b or c, it's either a or d but i can't figure out which one sorey