Identify dependent and independent variables of the following statement: (1) the more time people spend using social media, the less they read books.(2) drinking energy drinks makes people more agressive

Which statement about spreading knowledge of diseases and health around the world is correct?

Why do you think that historians use the word “revolution” to describe important changes in agriculture? how did the green revolution and other agricultural revolutions change the lives of billions of people? < < read less

“obamacare”: included a provision for government-run health insurance called “the public option.” was bitterly opposed by congressional republicans because most favored a “single-payer” plan. survived two challenges to its constitutionality. was partially repealed in 2013 in order to avert a government shutdown. led to the expansion of medicaid in republican controlled states.