Answer:
GRadient= 0.192 mb / km , the correct answer is a
Step-by-step explanation:
The pressure gradient would be considered linear so we can use a proportional rule to find the gradient
Gradient = Dp / Dd
Gradient = (1045 -997) / 250
Gradient = 48/250
GRadient= 0.192 mb / km
The correct answer is a