Trails in the west used to sell cattle to urban areas.
Cattle Trails
Relating to, or exhibiting the methods or principles of science.
Scientific
To make full or complete again.
Replenish
Produce or achieve.
Contribution
Able to purchase
Affordable
Permanent road laid with rails, on which locomotives travel.
Railroads
Building block of organism; needed for growing and surviving.
Nutrient
Activity of operating an aircraft.
Aviation
Model varying in function or style.
Design
Person who studies science
Scientist
An area of land under jurisdiction of a ruler or state.
Territories
Careful or diligent search or examination
Research
A process or device that has been created
Inventions
Act of passing through the air by the use of wings.
Flight
Person who provides assistance to a telephone caller.
Telephone Operator
Name used to describe those who raise and sell cattle.
Cowboys
Person who designs, discovers or creates.
Inventor
To grow different crops in order to prevent soil depletion.
Crop Rotation
Instrument for reproducing sounds at a distance.
Telephone
To decrease the supply seriously
Depletion
January 1st 1800 – December 31st 1899.
19th Century
Piece of equipment designed to serve a purpose.
Device
Act or process of using words, sounds, or signs to express information.
Communication
Occupation concerned with cultivating land, raising crops, and feeding, breeding, and raising livestock; farming.
Agriculture
Publicly acknowledged someone as a participant in the production of something.
Credited