Final answer:
A landslide most likely results in d. completely covered areas and downed trees as large amounts of soil and rock move downhill, covering the land beneath. This differs from volcanic eruptions, which produce magma and lava. Landslides can also cause soil erosion and structural damage.
Step-by-step explanation:
Effects of a Landslide
Which change to land would most likely result from a landslide? The most likely scenario would be completely covered areas and downed trees. During a landslide, large amounts of rock and soil rapidly move downhill, which can cause extensive coverage of the landscape below. Unlike volcanic eruptions, landslides do not produce hot magma or lava, so options A and B are not typical results of landslides. They can result in large cracks on the Earth's surface, but these are not as common as the widespread covering of areas, including the downing of trees, which is characteristic of landslide occurrences.
Landslides are usually triggered by factors such as heavy rainfall, earthquakes, volcanic activity, or human disturbances like deforestation. They can lead to significant soil erosion and structural damage to buildings and infrastructure. The impact of a landslide is immediate and can be devastating to local ecosystems, as seen in the aftermath of the Mount St. Helens eruption.