The H-R Diagram, an important tool of astronomers, relates stellar temperature to stellar
A. color.
B. mass.
C. distance.
D. brightness.
E. density.
Answer: D
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A form of kinetic energy that travels in the form of waves as a result of changes in electrical and magnetic fields is
a. Wind b. electromagnetic radiation c. Waterfalls d. Electricity e. solar radiation
The political causes of forced migration are typically ________
A) armed con?ict or discrimination B) rigged elections C) one party rule and a strong leader D) famine and deforestation E) mutual distrust by rival clans
Which of the following is associated with cells in an isotonic solution?
A) crenation B) hemolysis C) reverse osmosis D) none of these
The biotic component of an organism's environment is the non-living or physical factors.
Answer the following statement true (T) or false (F)