Which new convenience could be found in two-thirds of american homes by 1930?

a) dishwashers
b) air conditioning
c) electricity
d) television

From the examples below, choose the best examples of industries in african countries and their influence on economic development. select all that accurately represent african economies and factors of production. because agriculture remains central to the success of the mali's economy, any change to climate (such as drought) or price of crops significantly affect the country as whole. the thriving manufacturing industry in chad's northern region sustains the country's economy as a whole. egypt's manufacturing and export of cotton is the primary focus of the economy in the country. morocco serves as a representative of service industries in africa with a growing tourism market.

Which of the following is a problem in the health care system of the united states? a. too many doctors in rural areas b. too many doctors who are general practitioners c. fraud d. costs that are too low

Which steps are important when designing and conducting a scientific experiment? hide the results from fellow scientists. identify the independent variable. eliminate all dependent variables. address any confounding variables. form a non-falsifiable hypothesis.