How do we know the outer core of the Earth is molten?
A) By drilling well to the core.
B) Because there are volcanoes.
C) By measuring the mass of the Earth.
D) Because seismic waves do not travel through that boundary.
D) Because seismic waves do not travel through that boundary.
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The deforestation of tropical rain forests is occurring at rapid rates
A) in nearly all areas where the biome exists, with no significant areas of forest expansion. B) in most areas where the biome exists, with lesser rates in some places and expansion of forest in other places. C) in a few areas where the biome exists, with slow rates in most places and expansion of forest in other places. D) in a few areas where the biome exists, but expansion of forest in most other places.
Land that cannot be cultivated will not be productive for other uses.
Answer the following statement true (T) or false (F)
Physical geography's major function is to study and learn about:
a. human activity and the results thereof. b. Earth's environments and the processes that influence them. c. the physical and human features of a region. d. the composition of Earth's crust.
Missing geologic time caused by erosion is called a(n):
A. fold B. igneous intrusion C. unconformity