Answer:
Gold miners
Explanation:
During the Gold Rush in San Francisco, miners were asking for sturdy and durable workpants. Levi Strauss made pants from heavyweight denim (from serge de Nimes, a twill made in southern France), which was dyed with indigo – hence the name blue jeans. Indigo was inexpensive and easy to acquire. Also, indigo maintains its color fastness when laundered. Leg openings were wide enough to go over work boots.
Answer:
Active :The dog chased the cat.
Passive:The cat was chased by the dog.
If we use electric car instead of cars which run on fossil fuels,we can reduce use of fossil fuels.Hence, this car technology can be employed to conserve the fossil fuel reserves. Hybrid car technology uses two or more distinct power sources to move the vehicle.
Use of biofuels such as ethanol or biodiesel could also play an important role in saving fossil fuels. Ethanol is is the most common biofuel worldwide. It can be mixed with gasoline to any percentage and used in existing petrol engines as a replacement of gasoline. Biodiesel is beneficial because it can be used in existing vehicles with little or no adaptation.
Solar panels can be used in homes instead of electricity which is generated using fossil fuels.
Using mass transportation like train,bus,metro instead of personal car could reduce the use of fossil fuel.
Using alternate energy sources like solar power,tidal power ,wave energy,wind energy,hydro thermal energy ,geothermal and nuclear energy could definitely reduce the use of fossil fuels.
Brought in through trading because it brought infested rats and fleas
