Shifting cultivation is an agricultural system in which plot of land are cultivated temporarily, then abandoned while post-disturbance fallow vegetation is allowed to freely grow while the cultivator moves on to another plot.
<span>A recent study has shown that children who are conceived in the winter months up until March in the US are 10% more likely to develop autism than those conceived in other months. The reason might be that there is a greater occurrence of infectious diseases in the winter months which may expose the mother to pathogens.</span>
The case in which policy or situation did the motto not to kill the indian, and was an important role in western expansion is :
Indan Boarding Schools
The schools were first built in 1870 in Indian Prison
hope this helps
