Based on this study of high school graduation rates for teen mothers in Oklahoma, what is the relationship between early parenthood and education?

Teenage mothers do not get enough support from their school systems.
Early parenthood makes it more difficult to succeed academically.
Half of teenage girls are more likely to graduate because they are mothers.
Some teenage girls do not graduate regardless of whether they are mothers.

the plates spread at mid-ocean ridges (they are divergent plate boundaries) which allows magma to rise through the weakness between the plates. the magma then emerges as lava from the boundary and cools, creating a new crust.

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.