A single, identifiable source of pollution is called a(n) ____________________
Fill in the blanks with correct word
point source
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La Niña conditions in the equatorial eastern Pacific Ocean can increase the risk of wildfires in the United States by ________ some parts of the country.
A. wafting firebrands from Central America into B. raising the temperature of the stratosphere over C. wafting firebrands from South America into D. causing less rain to fall in E. bringing a low-pressure system over
Which zone is typically associated with mountains in a river system?
A. source B. transition C. floodplain D. delta
Large, explosive volcanic eruptions eject large quantities of ________ into the stratosphere, causing temporary global cooling
Fill in the blank(s) with correct word
Where does the north or south celestial pole appear in the sky of New York?
A. The north celestial pole appears in the sky of New York at an altitude of 74 ? at south. B. The north celestial pole appears in the sky of New York at an altitude of 74 ? at north. C. The north celestial pole appears in the sky of New York at an altitude of 40 ? at north. D. the south celestial pole appears in the sky of New York at an altitude of 40 ? at south.