Distribution of potential evapotranspiration during the year:
High in summer, low in winter, annual surplus.
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Which of the following describes what contour lines represent on a 500 hPa chart?
A. lines of constant wind direction B. lines of constant pressure C. lines of constant density D. lines of constant altitude
In 1992, the Canadian government ________
A) banned the use of trawl fishing B) started harvesting manganese nodules from the ocean floor C) ordered a complete ban on cod fishing D) enacted laws to protect many species of whales E) gave subsidies to fishermen who were losing money due to low fish harvests
This type of dating uses radioactive elements and their decay products to determine an absolute age for an earth material.
A. Fossilization Timing B. Superposition C. Radiometric Dating D. Relative Dating E. Petrographic Dating
What is the best way to prevent the potential for urban flooding in the long term?
A. Protect urban forests B. Protect asphalt parking lots C. Build levees D. Build dams