Because the cycle of precipitation, condensation, the run off and evaporation are a never ending cycle and if things on earth like dead animals or polluted chemicals in the air can affect the biosphere so keeping the stages of the water cycle safe and clean are essential to keeping the biosphere unpolluted
They got new stuff and they were like "Oh snap new stuff" so then they were like "Aye dude you can do your economic stuff like this" they said "dude ur right". They traded a lot, made ships and traded there. SO ye
Answer:
i believe it is tied knots, since they had to memorize messages and run it across a trail
Personally, i believe so.
The gasoline industry contributed to the large portion of environmental damage that occurred each year compared to the rest of the industries. Which mean that higher taxation needed for the sale of the product, and government regulation for this specific industry is the most efficient method to do so.