What are the eight most common elements found in Earth's crust, listed from most common to least common (by percent)?
a.) oxygen, silicon, aluminum, iron, calcium, magnesium, potassium, sodium
b.) oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium
c.) oxygen, silicon, aluminum, iron, calcium, potassium, sodium, magnesium
d.) magnesium, potassium, sodium, calcium, iron, aluminum, silicon, oxygen
e.) oxygen, silicon, aluminum, iron, calcium, sodium, magnesium, potassium Submit
Answer: b.) oxygen, silicon, aluminum, iron, calcium, sodium, potassium, magnesium
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A. urban B. rural C. coastal D. export-producing
Which of the following nations in Latin America has had a female president?
A) Colombia B) Peru C) Costa Rica D) Bolivia E) Mexico
Which of the following forecast methods is used to predict weather by weather types?
A. steady-state forecast B. persistence forecast C. analogue method D. probability forecast
When a tornado is approaching from the southwest, its strongest winds are on its ____________________ side
Fill in the blank with correct word.