What are the significant events in his childhood years? Why are these significant?

increases in demand are shown by a shift to the right in the demand curve. this could be caused by a number of factors, including a rise in income, a rise in the price of a substitute or a fall in the price of a complement.

which the answer is:

b

they consider la nina a warm place and el nino a cool place but all aoround its pretty neatrual