Explain the Milankovitch Theory. What will be an ideal response?The Milankovitch Theory suggests that glaciation can be initiated by changes in three aspects of Earth’s orbit: orbital eccentricity, the tilt of the Earth’s axis, and the precession of the
equinoxes. These factors cause variation in the distribution of solar heat at any latitude
through time and can influence climate.
Pluvial lakes are an indirect effect of glaciation. They occur because cooler temperatures
cause increased precipitation and decreased evaporation during glacial periods. In contrast,
proglacial lakes form when meltwater collects adjacent to a glacial margin.
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How can you tell whether a sugar solution is saturated or not?
A. There will be a precipitate if the water is heated. B. As long as there are more water molecules than sugar molecules, there is a saturated solution. C. Add more sugar; if it dissolves, it is saturated. D. Cool the solution to see if there is a precipitate.
Suppose the average snowfall over an area of Nunavut is 100 cm per year. How many years will it take for the snow to reach a depth of 1000 metres? (Assume there is no melting in summer and no compaction)
A. 1000 years B. 10,000 years C. 100,000 years D. 10 years
The types of marine deltas that are recognized, based on the relative importance of the processes involved in their formation are ____________________-dominated, ____________________-dominated, and ____________________-dominated
Fill in the blank(s) with correct word
Which one of the statements about the acceptability of risk is correct?
A. Risks that are part of nature are less acceptable than those that are not. B. Risks that are familiar are less acceptable than risks that are unfamiliar. C. Risks imposed on a person are less acceptable than those voluntarily accepted. D. Risks to children are less acceptable than risks to children.