1. The largest division of the geologic time scale is the...

1. The largest division of the geologic time scale is the

        A. Eon

        B. Era

        C. Period

        D. Epoch

 2. The Mesozoic Era was the Age of Reptiles while the current Cenozoic Era is the Age of

    A. Mammals

    B. Birds

    C. Humans

    D. Technology

 3. The layers in sedimentary rocks are also called

        A. eras

        B. epochs

        C. strata

        D. gaps

 4. The movie "Jurassic Park" got its title from which era?

        A. Paleozoic

        B. Mesozoic

        C. Cenozoic

        D. Holozoic

 5. During which era were the first land plants formed?

        A. Cambrian

        B. Pre-Cambrian

        C. Paleozoic

        D. Mesozoic

 6. The era of middle life, a time of many changes on Earth

        A. Paleozoic

        B. Mesozoic

        C. Cenozoic

D. Holozoic

 7. What is the longest part of Earth's history where trace fossils

appeared.

        A. Pre-Cambrian

        B. Paloezoic

        C. Mesozoic

        D. Cenozoic

 8. The geologic time scale is subdivided into 4 groups. List them from the largest to the smallest.

    A. Eons, periods, epochs, eras

    B. Eras, eons, periods, epochs

    C. Epochs, periods, eras, eons

    D. Eons, eras, periods, epochs

 9. The end of this era was believed to be caused by a comet or asteroid colliding with Earth, causing a huge cloud of dust and smoke to rise into the atmosphere, blocking out the sun.

    A. Paleozoic

    B. Holozoic

    C. Mesozoic

    D. Cenozoic

10. Which geologic event occurred during the Mesozoic era?

    A. Pangaea formed

    B. Asteroids killed the dinosaurs

    C. The Rocky Mountains formed

    D. The Pleistocene Ice Age began RECOMMENDED