This is a bit of a tricky question! It depends on what we mean by "environment". Geography can be studied in two main ways:

1. Types of Environments: This refers to the different physical and human environments that exist on Earth. Here are a couple of examples:

* Physical Environments: Mountains, deserts, forests, oceans, etc.

* Human Environments: Cities, rural areas, agricultural landscapes, etc.

2. Study Environments: This refers to the different contexts in which geography is studied:

* Classroom: This is the traditional setting for learning geography, involving textbooks, lectures, and discussions.

* Fieldwork: This involves direct observation and study of geographic phenomena in the real world, such as visiting a rainforest or studying a local community.

So, depending on what you're asking, the answer is either:

* Types of Environments: Physical environments and human environments.

* Study Environments: Classroom and fieldwork.

Let me know if you have any more questions!