How and where do glaciers form? What will be an ideal response?
Glaciers form in any area where more snow falls than melts during the warmer seasons, so there is a
net accumulation. This fresh snow contains about 80% air-filled pore space, but it compacts as new
snow falls on it, partially thaws, and refreezes, and eventually makes a granular type of snow called
firn. The firn is buried and further compacted as more snow falls, and eventually, it is recrystallized
into glacial ice, which contains much less air than fresh snow.
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Food consumption varies around the world because of variations in
A) level of economic development. B) physical conditions. C) cultural preferences. D) All of these are responsible for variation in food consumption.
According to this study, which of the following appears to be true for great tits in the UK?
What will be an ideal response?
Which of the following is true about authoritarian governments in the 1960s-1970s?
A) military control of Chile in 1973 B) economic stability and growth C) Argentina's "Dirty War" D) all of the above E) none of the above
The oldest two independent states in the region are
A) Palau and the Solomon Islands B) Fiji and the Marshall Islands C) Australia and New Zealand D) New Caledonia and Papua New Guinea E) Kiribati and Tuvalu