The two most common elements found in Earth's crust are ____
a. silicon and magnesium
b. sodium and carbon
c. silicon and oxygen
d. silicon and aluminum
c
You might also like to view...
A sound wave traveling at right angles to the ocean's surface will be refracted.
Answer the following statement true (T) or false (F)
Red clay obtains its characteristic color from ________.
A. the oxidation of iron B. bacteria of the deep sea C. the silica liberated from diatoms D. calcium carbonate E. the remains of bottom organisms
Determine if the phrase in bold applies to only contact metamorphism, only regional metamorphism, both types of metamorphism or neither type of metamorphism. Found in mountain belts
A. Both contact and regional metamorphism B. Only contact metamorphism C. Only regional metamorphism D. Neither contact or regional metamorphism
Your textbook asserts global environmental change is ________
A) not happening B) not caused by humans C) partially caused by humans D) about to cause life on Earth to cease E) mostly occurring over time in scales of millions of years