Which air mass is typically responsible for unseasonably warm and humid weather in eastern North America?
a. maritime tropical
b. continental tropical
c. maritime polar
d. continental polar
a
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Ultramafic igneous rocks (those with very high magnesium and iron, and low silica content) may offer the best hope for improving the environment by
A) being placed on the ocean floor, where they can absorb water and reduce global sea levels. B) absorbing CO2, with their rate of absorption capable of being increased by people. C) pulling ground-level ozone out of the atmosphere as it cools. D) reducing the rate of salinization of soils when it is ground into a fine powder and sprinkled on the surface.
Lines used on maps to connect points of equal air pressure are called ____
a. isohyetes b. isorones c. isotherms d. isobars
Biogeographers study abiotic environments and their relationship to biotic communities of plants and animals
Indicate whether the statement is true or false
Which of the following is NOT true about the influence of Ekman transport on surface currents?
A. Each subsequent layer of water moves more quickly than the one above it. B. The effect extends to a depth of approximately 100 to 150 m below sea level. C. The average flow of water is 90 degrees to the direction of wind. D. Surface waters move 45 degrees to the direction of wind. E. All of these statements are true.