Answer:
To match the vector fields with the verbal descriptions of the level curves or level surfaces, here is the corresponding match:
1. F=2i+j: E. circles
2. F = 2i+j+k: D. spheres
3. F = 2zi+yj: F. hyperboloids
4. F = xi + yj – zk: B. lines
5. Fzi+jk: A. planes
6. F = xi+yj: G. ellipses
7. F = xi+yj+zk: H. ellipsoids
8. F =zij xi yj: C. paraboloids
9. Fi+0.j: B. lines
10. F = yi + xj: G. ellipses
11. F = 2xi+yj + zk: A. planes
Please note that the matching can vary based on the context and specific definitions given. However, this correspondence should provide a general idea of how the vector fields align with the verbal descriptions of the level curves or surfaces they are perpendicular to.