You should definitely clean out the tank, the oil can’t be healthy for the fish to swim around in.
Uplift occurs are converging tectonic plate boundaries and at faults with compressional forces. As two tectonic plates collide, usually, the continental plate os folded due to the pressure hence causing uplift. At reverse faults, the compression causes the earth’s crust to uplift causing a hanging wall over the footwall.
Subsidence also occurs at convergent plate boundaries. The oceanic plate is usually the one that subsidies under the tectonic plate during the collision because it is heavier. SUbsience also occurs at normal faults where the two crust moves away from each other causing a chunk of the crust to subside. The hanging wall goes lower in elevation in comparison to the footwall.
Answer:
if you got fever you drink tonic not isotonic