Answer: Here's my answer, sorry if its detailed.
Step-by-step explanation:
The correct answer is B. Valleys would become deeper.
Weathering by wind can have a significant impact on the features represented on a map. Wind erosion, a type of weathering, primarily affects the shape and structure of landforms over time. In the case of wind erosion, the force of the wind can carry and transport small particles, such as sand and dust, which can then collide with and erode the surface of rocks and landforms.
Over time, wind erosion can cause valleys to become deeper. As the wind carries and deposits abrasive particles, such as sand, into the valleys, it acts like sandpaper, slowly wearing away the surface and deepening the valley. This process is known as abrasion.
It's important to note that while wind erosion can deepen valleys, it does not necessarily make mountain peaks sharper, higher, or lower, or make valleys longer. These changes can occur through other geological processes, such as tectonic uplift or the erosion caused by water.
In summary, weathering by wind primarily affects valleys by deepening them through the process of abrasion, making option B the most likely outcome.