Suppose the government increases its spending and that net exports increase. in 2 or 3 sentences, explain how these actions affect economic performance.

In general, if an increase in government spending leads to an increase in exports then this has a positive result on economic performance, since export revenues are greater--as long as these revenues are greater than the government spending. 

These islands/chinampas then provided rich soil for crops with easy access to water. i hope this is correct, im so sorry if its not !