The intertropical convergence zone
To prove: √2 is an irrational number. Proof: Let us assume that √2 is a rational number. So it can be expressed in the form p/q where p, q are co-prime integers and q≠0. √2 = p/q. ...
Solving. √2 = p/q. On squaring both the side we get, =>2 = (p/q)2
Different regions have different available resources. The need for certain resources is sometimes greater than resource availability in a given area. This leads the necessity to acquire needed resources from another area. Countries can export or import resources based on need, but there is algo the concern of finances as well.