A country's "income" is determined by how wealth is distributed there. The USA is considered a "high income" country, and Mexico is
considered a "middle-income” country. Even though cancer is more
common in wealthy countries, "about 70% of cancer deaths occur in
low- and middle-income countries.” If Mexico has fewer cancer cases
than the USA, then why do you think more people *die* of cancer in
Mexico?

In 2015, about ten percent of total u.s. energy consumption was from renewable energy sources. renewable energy plays an important role in reducing greenhouse gas emissions. when renewable energy sources are used, the demand for fossil fuels is reduced. sanjay and his family want to cut back on their use of non-renewable resources at home. they are thinking of an alternate way to heat their home without adding more greenhouse gases or pollutants to the environment. which renewable resource would not fit into their plan? a) solar power b) burning wood c) constructing a wind turbine eliminate d) generating hydroelectric power