One way the environment can affect people is what they eat.
One way that you can help create a positive environment for people with disabilities is by treating them as able people. Most people with disabilities are usually discriminated and treated as inferior humans.
They built canals to irrigate their crops.
Your answer would be tools, its in the question
Colon Detoxification is when toxins, many of which come from the way we diet and our environment, are cleared from the colon. The detoxification process involves dietary and lifestyle changes in the way you live and eat, in hopes of reducing the kind and number of toxins you take in, and improving one's colon.
The people fixed the environment just the way they had it the first time.
ya mamahow did the railroads give people control of the environment
it may be possible, if their is a difference in one of the thousand genes in their body. mainly the cause is by the environment and lifestyle, the way people treat them in a different way.
one way is by having stone tools. another having agriculture later on. and cold climate.
Microeconomics policy
technology
visual exposure