- Keeping warm is the opposite of becoming cold
- If a living thing becomes too cold then that living thing will die
- Hence, an animal requires warmth for survival

- An animal requires warmth for survival
- If the environmental temperature / air temperature is too cold then an animal / a living thing in that environment may become cold
- Hence, an animal requires warmth for survival in a cold environment

- An animal requires warmth for survival in a cold environment
- The arctic environment usually is cold in temperature from being at a northern lattitude
- So, an animal requires warmth for survival in an arctic environment

- An animal requires warmth for survival in an arctic environment
- Humans usually develop inventions that they require
- So, a human might develop an invention for warmth in an arctic environment

- Clothing is a kind of covering made from materials
- Insulated material can be used for keeping warm
- So, clothing made from insulated material can be used for keeping warm

- Clothing made from insulated material can be used for keeping warm
- If something / an invention / a discovery is invented / discovered then that something / that invention / that discovery can be used
- Therefore, if insulated clothing is developed then it can be used for keeping warm

- A human might develop an invention for warmth in an arctic environment
- If insulated clothing is developed then it can be used for keeping warm
- So, a human might develop insulated clothing for keeping warm in an arctic environment

So, a human might develop insulated clothing for keeping warm in an arctic environment
Which invention would a culture living above the Arctic Circle most likely develop?
- Clothing is a kind of covering made from materials 
- Keeping warm is the opposite of becoming cold 
- Insulated material can be used for keeping warm 
- If something / an invention / a discovery is invented / discovered then that something / that invention / that discovery can be used 
- If a living thing becomes too cold then that living thing will die 
- Humans usually develop inventions that they require 
- If the environmental temperature / air temperature is too cold then an animal / a living thing in that environment may become cold 
- The arctic environment usually is cold in temperature from being at a northern lattitude