87%(127)111 out of 127 people found this document helpful
This preview shows page 124 - 126 out of 142 pages.
near the river, from a time when biology was not a whole lot more diverse than algal mats.Points Earned: 1.0/1.0Correct Answer(s):A14. Geological evidence based on several radiometric techniques has provided a scientifically well-accepted age for the Earth. Represent that age of the Earth as the 100-yard length of a football field, and any time interval can be represented as some distance on the field. (So something that lasted one-tenth of the age of the Earth would be ten yards, and something that lasted one-half of the age of the Earth would be fifty yards.) On this scale, how long have you personally been alive? A) 50 yards. B) 10 yards. C) 1 yard. D) 1 inch. E) Much less than the thickness of a sheet of paper.Feedback: If the 4.6 billion years of Earth history are 100 yards, then the few thousand years of written history are just one-millionth of that history, just over the thickness of a sheet of paper. And your small piece of written history must be only a small fraction of a sheet of paper, roughly 1/200th or so.Points Earned: 1.0/1.0Correct Answer(s):E15. What is accurate about the scientific results learned by counting tree rings and other annual layers? A) Records in trees, lakes and ice all go back 12,429 years, but none of them are longer than that, so that must be the age of the Earth. B) Records in tree rings, lakes and ice all reach beyond 12,000 years, and some of them reach beyond 40,000 years. C) No known records have more than 5000 layers. D) No known records have more than 6000 layers. E) The longest record of annual layers goes back 12,429 years, but there is no way to check this because there are no other records that long.
Feedback: There is a continuous record of overlapping tree rings from north Germany with 12,429 years intrees (and that was published a few years ago). The longest lake-sediment record of annual layers is over 40,000 years, and there are over 100,000 years in the longest ice-core record that preserves annual layers. And, various lake, tree and ice records agree on the history of volcanoes, climate changes, etc. Points Earned: 1.0/1.0 Correct Answer(s):BPoints Awarded14.00Points Missed1.00Percentage93.3%1. Sometimes, science and religion come into conflict. This is because: A) Science and religion must disagree. B) Science and religion can coexist just fine with a little effort, but sometimes choose not to do so.Feedback: Pope John Paul II said that the Catholic Church has no problem with evolution, and Baptist Jimmy Carter also supported evolution, so it is clear that religion and science can agree.Points Earned: 1.0/1.0Correct Answer(s):B2. There are many large mammals on Earth today. This is because: A) The warm blood of the many large mammals that lived before the meteorite impact allowed them to survive the cold from the meteorite impact that killed the dinosaurs. B) The very large mammals that were alive on Earth with the dinosaurs have gotten smaller overtime because the mammals don't have to be big to compete with the dinosaurs any more. C) Small mammals wanted to become bigger, and after the dinosaurs were killed, the small mammals had their chance and so made themselves bigger.