____________________ are manmade compounds that have been widely used as refrigerants and in spray propellants and foam blowing
Fill in the blanks with correct word
Chlorofluorocarbons
Environmental & Atmospheric Sciences
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Mesozoic-age coal deposits in the United States are the primary source of coal in this country. Indicate whether the statement is true or false
Environmental & Atmospheric Sciences
Venus was once referred to as "Earth's twin." How are these two planets similar? How do they differ from one another?
What will be an ideal response?
Environmental & Atmospheric Sciences
What type of volcano is short-lived, relatively small, and is commonly on the flanks of other volcanoes?
A. Caldera B. Shield C. Dome D. Cinder cone E. Composite
Environmental & Atmospheric Sciences
The horizon that is commonly called topsoil is the ________ horizon
A) A B) O C) E D) B E) C
Environmental & Atmospheric Sciences