3 enviornmental factors

Imagine that you are living 200 years in the future. Earth has been invaded by a powerful empire, Akkadiana, but you manage to escape with several friends in a small space ship. Your space ship lands on an unknown planet, but you find that the geography and the environment is just like Earth. The only difference is there are no cities, towns or villages and you and your friends are the only humans here.

First, I would find for a river because river is good for farming, it can provides food and can provides fresh water to the people. It can bring water and fertile soil to the land. It can also allows to clean our bodies and clothes and allow transportation.
We can hunt fishes, water birds and animals that come to drink for foods. We can get drinking water and the water for our farming very easily. Soil that are close to the river are really fertile so, it is good to farm near the river. And we can clean our clothes and bodies from the river. We don't need transportation but we don't know there are other dangerous species so, we need to move around by the river.

Second, I would find for plains because plains is an area where is flat and fertile land that is good for farming. It is wide and flat area. If there is no plains, it's going to be really hard to farm.
I need plains because if the areas are rocky or steep slopes, it's going to be hard to build permanent houses.

Third, I would find for the trees because if there is no trees, we can't protect from sun and we can make things from it. We can also get foods from trees.
When we finish eating fruits, we can get seeds from them. And we can plant them.
We can make tools and furniture and papers from trees. We can also get shade from it.