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Because a bicycle is built thing, built by humans.
It's not born from another bicycle, it's not harvested from a bicycle tree / bush /plant.
Humans thought them out and humans made them, and they're complicated enough to be called a system.
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∙ 11y ago
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Which are natural resources A trees B sunlight C plastic D water?
Natural resources are things found in the earth. Things that are not natural resources are things that are manmade. For example, a manmade resource includes a telephone. Plastic is not a natural resource. Trees, sunlight, and water are natural resources.
Is tar manmade?
No, it is a naturally occurring petrochemical.
Who invented the first water bottle?
Well it's manmade which means that we made it of course
What is special about Kariba dam?
Kariba Dam / Lake Kariba is the largest manmade lake in the world.
Is a burning candle an example of an open system or a closed system?
The light bulb is a closed system: no mass transfer.
Glass is an example of what kind of material?
Manmade material
Is Dacron natural or manmade?
it is manmade
Is lantern manmade or nature?
Manmade actually.
Are the twin towers natural or manmade?
Manmade
Is rayon a natural fiber or manmade fiber?
manmade
What is the semi natural harbor?
It requires artificial or manmade protection for entrance Visakhapatnam is an example of semi natural harbor.
When did Manmade God end?
Manmade God ended in 2004.
When was Manmade God created?
Manmade God was created in 2001.
Do lungs absorb all of the oxygen present in the air?
Not all but most. there is no system, manmade or natural, that is 100% efficent.
What are california's manmade tourist attractions?
what are califonia's manmade tourist atraction
What advantages people get from manmade pond?
people get lun from manmade pond
Is the Great Wall of China a manmade wonder?
Yes the Great Wall of China is manmade .
