The first species to live on new land, such as those formed from volcanic lava; are called
A. Keystone species
B. Regulating species
C. Invasive species
D. Pioneer species
Answer: D. Pioneer species
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Where is Megalopolis located?
A) Texas, from Houston to San Antonio B) East Coast of United States, from Boston to Washington, D.C. C) mountainous west of the United States, from Salt Lake City to Denver D) Midwestern United States, from St. Louis to Cincinnati E) West Coast of United States, from Portland, OR to Seattle
What is the zone of hot, partly melted rock that flows and can be deformed?
A. crust B. asthenosphere C. inner core D. geosphere E. lithosphere
From which type of rock is marble formed from?
A. sedimentary B. metamorphic C. igneous D. slate
Islam originated in present-day Saudi Arabia
Indicate whether the statement is true or false