Which factor best explains for the difference in March sea ice between March in the northern hemisphere and March in the southernhemisphere?
A. continentality for all surfaces
B. seasonal variation in daylength
C. high albedo for all surfaces
D. low sun angle throughout the year
Answer: B
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Which of the following lines of evidence did Alfred Wegener use to support the concept of drifting continents?
a) the distribution of species of fossils b) the way the shapes of the continents fit together like pieces of a jigsaw puzzle c) the composition of meteors from outer space d) the pattern of similar mountain belts on different continents e) evidence of glaciers in areas that are now tropical
Convergent plate boundary is a boundary where:
a. two plates move apart from each other b. two plates move toward each other (so that one plate sinks beneath the other) c. two plates slide sideways past each other d. two plates collide and then are sutured into a supercontinent
Which of these is common to both cold and warm fronts?
A) lifting of warm air over cold B) light to calm winds C) decreasing precipitation rates D) divergence of surface winds E) steady barometer readings
Cheetahs can run extremely fast because
A. Their ancestors who were able to run fast had an advantage and passed those genes on to their offsprings B. They need to outrun lions C. They are competing with stronger lions and hyenas for their food, so they need to be fast D. Over time, they gradually built up speed as they adapted to faster and faster prey species E. All of the options above