Mountains
An herb with purple flowers that is usually grown as food for horses and cows.
Alfalfa
The ability of an animal to blend in with its surroundings.
camouflage
to water crops by digging a ditch that leads from a body of water to a farm
irrigate
natural features on the Earth's surface
landforms
Animals without a backbone.
invertebrates
a pond or lake used for storing water
reservoir
A deep canyon that usually has a river running through it.
gorge
Things found in nature that are valuable to humans.
resources
made of material that comes from a volcano
volcanic ash
animals with a backbone
vertebrates