science strives to be as accurate as humanly possible that is often well short

Science strives to be as accurate as humanly possible

This preview shows page 53 - 56 out of 59 pages.

science strives to be as accurate as humanly possible, that is often well short of Truth. Points Earned: 1.0/1. 0 Correct Answer(s): B 7. If you could drill a hole straight to the center of the Earth, and keep track of what the hole is going through, you would find:
Image of page 53
A) You would go through one sort of material, and then a different, denser material, and then a still-different, still-denser material, because the planet is made of concentric layers, sort of like an onion. B) You would go through one sort of material all the way to the center, because the planet is all mixed up. C) If your hole started at the North Pole, you would go through different layers of different materials, but if your hole started at the equator, you would go through one sort of material all the way to the center. D) If your hole started at the equator, you would go through different layers of different materials, but if your hole started at the North Pole, you would go through one sort of material all the way to the center. E) You would strike Diet Pepsi when you got to the center. Feedback: The planet is onion-like, with an inner core, then an outer core, a mantle (which has several sub-layers), and a crust. The core is waaaaay too hot and high- pressure for Diet Pepsi. Points Earned: 1.0/1. 0 Correct Answer(s): A 8. Geologists get to play with chemistry, physics, biology… and history! And what a history you will meet as you work your way through the course. Starting at the beginning, the textbook provides the scientifically accepted start of the story… and promises that you’ll get to explore some of the evidence for that scientific view, later in the semester. Meanwhile, which is more nearly correct of the scientifically accepted view? A) The Earth formed when the Big Bang caused older materials to fall together, about 14 billion years ago. B) The Earth formed from the falling together of older materials, about 4.6 billion years ago. C) The Earth formed in the Big Bang, about 6000 years ago. D) The Earth is eternal, having been here forever and promising to be here forever. E) The Earth was assembled by gigantic space beavers, which gnawed down the primordial tree of life and piled its branches together to form the planet.
Image of page 54
Feedback: The Big Bang is estimated as having occurred about 14 billion years ago. Stars that eventually formed in the wake of the Big Bang led to production of elements such as iron and silicon that are common in the Earth—we are formed from second-generation stardust, which “got it together” to make the planet about 4.6 billion years ago. Points Earned: 0.0/1. 0 Correct Answer(s): B 9. National Parks are: A) Regions containing key biological resources that have been set aside for the enjoyment of the present generation. B) Regions containing key geological resources that have been set aside for the enjoyment of future generations. C) Regions containing key biological, geological or cultural resources that have been set aside for the enjoyment of the present generation and future generations.
Image of page 55
Image of page 56

You've reached the end of your free preview.

Want to read all 59 pages?

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture

  • Left Quote Icon

    Student Picture