In addition to military takeovers, some west african nations have from
a. grass-roots movements
b. declining birth rates
c. natural disasters
d. civil wars

Which of the following regions has what is considered the most rugged terrain in oklahoma? a. the wichita mountains b. the arbuckle mountains c. the sandstone hills d. the ouachita mountains

What is the mercury length of time for one revolution around the sun?

Which features do all new rocks formed near oceanic ridge share? pillow shaped stripes pattern provide evidence to seafloor spreading made from molten material iron oriented in same direction