Investiga las políticas de planificación familiar de china

im pretty sure its none of them

all 4 come together due to gravity

all objects have gravity, even atoms

but their gravitational force is very low and it takes a long time for them to become closer together

reflecting point a across the origin negates both of its coordinates.

b = (5, -4)

20: 5

explanation:

about 20% of the world's population lives in   southwest asia, but on less than 5% of the world's   land area.