Answer the following question given this paragraph: 

As we view the land around us we see landforms. Landforms are physical features on Earth’s surface. Landforms are introduced in this section but will be discussed more in later chapters. Constructive forces cause landforms to grow. Lava flowing into the ocean can build land outward. A volcano can be a constructive force. Destructive forces may blow landforms apart. A volcano blowing its top off is a destructive force. The destructive forces of weathering and erosion change landforms more slowly. Over millions of years, mountains are worn down by rivers and streams.


Q: Physical features on the earth's surface are known as ______

 Choices:

- atmospheres

- diversity

- biospheres

- landforms

A:
landforms
