B. Is the correct answer.
Answer:
Changes in gene expression
Explanation:
Answer:
A landform is a feature on the Earth's surface that is part of the terrain. Tectonic plate movement under the Earth can create landforms by pushing up mountains and hills. Erosion by water and wind can wear down land and create landforms like valleys and canyons.
When the ph freshwater becomes highly alkaline, it causes fish to die and damage to outer surface like grills, eyes and skin
