Climate and geography play a big role in shaping different types of ecosystems on land. Here are the main types you can find:

1. Forests:

   • These areas have lots of rain and warm to moderate temperatures.
   • An example is tropical rainforests, which are filled with many types of plants and animals.

2. Grasslands:

   • Grasslands are found in places that have seasonal dry periods.
   • Grasses grow really well here.
   • The prairies in North America are a great example of this.

3. Deserts:

   • Deserts have very little rain and have extreme temperatures.
   • Think about places like the Sahara or the Mojave Desert.

4. Tundra:

   • The tundra is found in cold areas with short growing seasons.
   • A good example is the Arctic tundra, where the ground stays frozen (which we call permafrost) and makes it hard for plants to grow.

Each of these ecosystems develops in its own way because of the weather and the land around them.