What does the sand and gravel do to the soil

The earth is composed of three different chemical layers: core, mantle and crust. the formation of these layers was from a process called

Paraguay is one of the only two countries in the americas that don't have a coastal border. the country is slightly smaller than california. it was under a military dictatorship for 35 years, ending in 1989; today it is a constitutional republic. most of the population is roman catholic, and over 60% of the people live in cities. its environment is threatened by deforestation and water pollution. which of the following facts from the paragraph above best describes an element of paraguay's culture? (apex)

Which event had the greatest impact on culture of south america