The free fall of rock through air is called a(n) _____________________
Fill in the blank(s) with correct word
rockfall
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Which of the following terms refers to a second surge of electrons that proceeds from the base of a cloud toward the ground during cloud-to-ground lightning?
A. stepped leader B. dart leader C. return stroke D. downstroke
If two places have the same latitude but different longitudes,
A) the two places are directly east or west of each other. B) the two places are directly north or south of each other. C) the places will be directly east or west of each other on some map projections but not others. D) the places will be directly north or south of each other on some map projections but not others.
High mountains consisting of tightly folded and overthrust sedimentary rock layers, as well as metamorphic rocks, are formed
A) along midocean ridges during seafloor spreading activity and are subsequently uplifted above sea level in response to isostatic processes. B) during plate collisions. C) during volcanic eruptions. D) in continental rift zones. E) exclusively by magma intrusions.
Suppose a weather forecast states the following: Light rain and cold today with temperatures just above freezing; southeasterly winds shifting to westerly tonight; turning colder, with rain becoming mixed with snow, then changing to snow. Which of the following types of weather fronts would be responsible for this forecast?
A. cold-type occluded front B. warm-type occluded front C. cold front D. warm front