A(n) ____________________ front occurs when a cold air mass actively moves upon a warmer air mass and pushes it upward
Fill in the blank(s) with correct word
cold
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Less than 10% of the U.S. public considers the environment to be one of the nation's most pressing problems.
Answer the following statement true (T) or false (F)
Most earthquakes occur along the circum-Pacific belt primarily because ____
A)of the convergence along plate margins B)of the divergence along plate margins C)Earth's crust is more rigid in these areas D)P- and S-waves are stronger in those areas due to the greater density of Earth's crust E)S-waves travel easily through water
A soil E horizon is an eroded horizon
Indicate whether the statement is true or false
Which portion of a eukaryotic gene carries information which will be transcribed to the RNA?
A) the entire gene B) the promoter C) the regulatory portion D) the structural gene