What is the elevation of point D? What is the contour interval on this map? Arid and semi-arid areas are two

Alright, Faith, let's tackle these.

Question 8:
To determine the elevation of point D, I would need to see the map or diagram that shows point D and its surrounding contour lines. Since the map is not provided in the image, I cannot accurately answer this question.

Question 9:
Similarly, to determine the contour interval on this map, I would need to see the map itself, which typically indicates the interval or allows it to be calculated from labeled contour lines. As the map is not provided, I cannot accurately answer this question.

Question 10:
Arid and semi-arid areas are characterized by very low or moderate rainfall, respectively. This means they are fundamentally defined by their lack of moisture.

• The correct option is A.

The final answer is $\boxed{\text{A}}$