Scientists use buoys to measure changes in ocean and wind temperatures in order to predict when el niño will occur. true or false.

How can health insurance increase life expectancy

Suggest two reasons why irrigation is important for human development of the desert (4 marks)

Reading graphs: unemployment us unemployment rate (1961-2011) identify the trends in the graph and then use the drop- down menu to complete each statement from 1961 to 1965 unemployment was in the mid-2000s through 2011. unemployment was percentage unemployed 1961 1971 1981 1991 2001 2011 year