2 Points
Which of these is a method of obtaining petroleum?
O
A. Aboveground mining
O
B. Drilling ocean rock
O
O
C. Surface mining
D. Electrical attraction

Can happen anywhere along the spine if the neural tube does not close all the way. the backbone that protects the spinal cord does not form and close as it should. this often results in damage to the spinal cord and nerves. a) cleft palate b) spina bifida c) encephalocele d) down's syndrome