Multiple Choice
At the start of the Triassic,most of the continents were above sea level,and sediments from that time are often red because ________.
A) they contain extensive deposits of iron ore
B) they are a major source of uranium and red quartz
C) they include iron oxides
D) the dry climate baked clays to form hornfels
E) there are extensive dune fields
Correct Answer:
Verified
Correct Answer:
Verified
Q58: The slight eastward slope of the Great
Q59: Bacteria that thrive in oxygen free environments
Q60: The _ period was the "golden age
Q61: The most common Precambrian fossils are _,layered
Q62: Earth's core,mantle,and crust formed during the _.<br>A)Archaean<br>B)Proterozoic<br>C)Paleozoic<br>D)Hadean<br>E)Tertiary
Q64: The Cenozoic era is often called the
Q65: Which of the following was an important
Q66: Which era is sometimes called the "age
Q67: During the Mesozoic era,the earth developed its
Q68: The atmosphere of Venus is composed primarily