Why is carbon dioxide considered a greenhouse gas?
a. It promotes the rapid growth of plants.
b. It traps heat generated in earth’s core within the atmosphere.
c. It traps heat from the sun in earth’s atmosphere.
d. It is a natural byproduct of plant growth.
c. It traps heat from the sun in earth’s atmosphere.
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An independent variable is the "cause" in a cause-effect study
Indicate whether the statement is true or false
Public support for involvement in a war typically __________.
A. starts low and increases over the long run B. starts high and decreases over the long run C. starts high and continues to remain high D. does not affect the popularity ratings of a country's leader
Only ___ amendments to the United States' Constitution have been ratified.
Fill in the blank(s) with the appropriate word(s).
Which burden of proof is used in civil matters?
A. "preponderance of evidence" B. "the average person" C. "clear and present danger" D. "beyond a reasonable doubt"