Strength, cheapness and the ability to be easily formed or "moulded".
However, increasingly, a lot of car bodies incorporate fibre glass, plastics, carbon fiber and other composite materials.
Aeroplanes are very useful! They help us get to places a lot quicker than by car or boat.
Cars are useful as they take us from our homes to our jobs, to the store, to events we attend. In western society the car has become a necessity.
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Yep, they allow us transportation. Without it we'd have to walk everywhere.
Fuels are useful to us. It is useful to us because we use it for our cars
Yes . They are still useful .
A car is useful for alo of things. like transporting things and getting you and you family/friends to places.
Why is any car useful? Your question makes no sense.
Because the are useful to us in many ways
Gorillas are useful towards us humans because it gives us an idea on our ancestry.
fricton is useful in many many ways: help in protecting from slipping protect the car from sliding due to friction you can make fire from rubbing two stones. etc......... etc....
lots of animals are useful to us because we eat them to live.