Which words in the following passage help you to identity the meaning of the word "vegetation"?
A wildfire is an uncontrolled fire that burns in wildland vegetation, often in rural areas. Wildfires can burn in forests, grasslands, savanna, and other ecosystems and have been doing so for hundreds of millions of years. They are not limited to a particular continent or environment.
1. uncontrolled fire
2. environment
3. wildland, grasslands
4. hundreds of millions of years
2. environment
3. wildland, grasslands