Disease killed millions of Native AmericansThe Columbian Exchange (the transfer of plants, animals, diseases, etc. between the old and new worlds) had both positive and negative impacts. For the native people in the Americas, the cumulative effect was negative.One example is large groups of native peoples being wiped out by European diseases like smallpox.
It is possible that Indians grew several native plants such as gourds and range from the Tucson basin in the Arizona desert, at an elevation of 700 mts.
Some governors objected to the American Recovery and Reinvestment Act because government funds were not shared equally among states. States with large automotive plants such as Michigan clearly benefited from the funds while other states did not receive many benefits.
Production went down around 90% using European farming systems. Native American systems used a Milpa type of planting system which produced around 30 million calories per acre, where European farming systems produced between 3 and 7.9 million calories per acre. A "Milpa" or "Milpas" farming system is a way to grow multiple crops in the same space to benefit each type of plant, this type of system cannot use machines.
by burning some plants so more nutriants could go to other plants
yes
domesticating plants
Glen Heyne has written: 'Exotic plants for your garden' -- subject(s): Ornamental Plants, Plant introduction
Intentional introduction of invasive species is when non-native plants and/or animal life is brought into an area it did not originate in, usually with detrimental results for the environment or ecosystem.
early introduction of sewage treatment plants
reproduction of plants through annual introduction of seeds, which result from sexual fertilization.
Introduction of new plants and animals
Dukinfield Henry Scott has written: '[Papers on fossil plants]' 'Flowerless plants' 'An introduction to structural biology'
There are plants on certain American flags so it would depend on which one you are referring to.
William Scrugham Lyon has written: 'Report on the introduction and distribution of seeds and plants by the Bureau of Agriculture' -- subject(s): Accessible book, Plant introduction, Agriculture
Plants
25%