What caused the early Earth to differentiate into separate layers?

differences in temperature and density

differences in distance from the sun

differences in melting points

differences in the amount of ice present

What two properties affect the density of ocean water

Read the following quote from the nature conservancy, “the 3 billion people who live in poverty around the world will be hardest hit by climate change. the poor are more dependent on natural resources and have less of an ability to adapt to a changing climate. diseases, declining crop yields, and natural disasters are just a few of the impacts of climate change that could devastate the world’s most vulnerable communities.” from this quote, what group of people is most vulnerable to climate change? those who depend on industrialized nations people who are able to adapt to changing conditions people living in central america people who are living in poverty

What could the united states of america do to improve their status? name at least 3(ap human geography)