Which machine is more analogous to the deposition of sediment at the front of a stationary glacier; a bulldozer or a conveyor belt? Why?
What will be an ideal response?
A conveyor belt is the better analogy because end moraines form when internal glacial flow brings rock debris to the toe and upper surface of the glacier where it is then released when the ice melts. If the glacier is stationary for a long time, then the ice flow continually delivers sediment to the same locations to build up the moraine ridge.
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When can an object be in a state of equilibrium?
A) when two or more forces are acting on it B) when it is at rest and no forces are acting on it C) only when one force is acting on the object D) when an object is not moving
Aircraft icing would be heaviest and most severe ____ freezing temperatures
A) in a cloud at warmer than B) in a cloud at just below C) in a cloud at well below D) outside a cloud at below
Refugees and internally displaced persons (IDP) originate from what countries?
A) Somalia, Mali, Sudan B) Somalia, Sudan, Niger C) Sudan, Mali, Ghana D) all of the above E) none of the above
Strip cutting of timber is a method of harvesting that
a. harvests trees singly or in small groups b. involves clearing trees along a contour of the land within a narrow corridor c. removes all trees from a very large area, with no attention to land contours d. is particularly damaging to the forest e. is promoted by logging companies because of the high profit margin