How does deforestation by fire or human activity contribute to mass wasting?
A) It allows the wind to blow across the slopes, imparting a stress that triggers landslides.
B) It kills tree roots that help hold the slopes in place, allowing mass movement.
C) It allows farming activity that exposes soil to erosion and mass wasting.
D) It allows excess rainfall runoff to erode the landscape, triggering mass wasting.
B
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the longest of all visible light waves are ______.
a - violet b -yellow c - green d - ultraviolet e - red
The Chernobyl incident in 1986 involved
A) a nuclear explosion high in the atmosphere. B) a nuclear missile that misfired and exploded. C) a nuclear power accident. D) a massive leak and fire at an oil exploration platform. E) an explosion and fire at a natural gas field.
The type of plate boundary that runs through California is called ____________________, and the name of this plate boundary is ____________________.
Fill in the blank(s) with the appropriate word(s).
What phase of the Demographic Transition Model (DTM) has the highest death rates and high birth rates?
A) Phase 1 B) Phase 2 C) Phase 3 D) Phase 4 E) Phase 5