Under which conditions would a state have fewer than two senators? a: under no conditions b: if it gained a large number of foreign-born residents c: if a state's population fell below the constitutional threshold d: if the census changed the size of its house delegation

worldwide, 780 million people do not have access to an improved water source. an estimated 2.5 billion people lack access to improved sanitation (more than 35% of the world's population)

aug 15, 2012 - although van leeuwenhoek was not the inventor of the microscope, he advanced it more he loved to grind and focus a new lens in order to see the unseen world. most of leeuwenhoek's microscopes were silver. in a simple but significant experiment (1668), he demonstrated that worms found on