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Hogar Banco de preguntas Geografía Archive 2025 February 04

Geography Questions from Feb 04,2025

Browse the Geography Q&A Archive for Feb 04,2025, featuring a collection of homework questions and answers from this day. Find detailed solutions to enhance your understanding.

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True or false: Sometimes older rocks end up on top of younger A True (B) False Which of the following is not a unit of geologic time? (A) epoch (B) millennium (C) era (D) age Stratigraphy is the study of (A) evolution. (B) human history. (C) rock layers. (D) Earth's atmosphere. [(1) Immersive Reader What are strata? A inconsistencies in the fossil record B rock layers REAK IT DOWN C well-known and widespread fossils READ \& D units of time [11) Immersive Reader How do sedimentary rocks form on Earth's surface? A in vertical stripes B with no clear pattern C in horizontal layers D in a crisscross pattern Where are we now, geologically? We're in the Cenozoic era, which began over 65 million years ago. But we haven't been here long. The earliest Homo sapiens found to date are an estimated 200,000 years old. That might sound old, but remember how old the Earth is an the scale we must use to organize and understand it. If all of our planet's history were put on a 24-hour clock, the Homo genus wouldn't even appear until a few seconds before midnight. The author of this passage would most likely agree with which statement? A We cannot fully organize or understand how old Earth is. B The Cenozoic era is not as important as the Mesozoic era. C Humans are relatively new to the planet. Intervals of geologic time are bound by important events, like mass extinctions or the appearance of animals with hard parts. The first single-celled organisms appeared abo billion years ago. Many sea animals first show up in the Cambrian period of the Paleoz era. That was about 545 million years. It is sometimes referred to as the Cambrian exple because it happened relatively quickly. It lasted just over 50 million years. The next per the Ordovician, ended with mass extinctions of \( 60 \% \) of all marine invertebrates. Dinosa wouldn't appear for over 200 million years, during the Jurassic period in the Mesozoic e Based on the passage, in geology, 50 million years is A an era. B not considered a very long time. C too short for any significant events to occur. D about how long dinosaurs were on the planet. The geologic record isn't always "perfect." But the imperfections give important clue Unconformities are inconsistencies in the rock layers. They often show how erosion, sea level change and other processes shaped a landscape. There are different kinds of unconformities. An angular unconformity occurs when older rock layers are tilted, an younger rocks form a horizontal layer above them. This indicates that deformation an erosion took place during a pause in sediment deposition. One angular unconformity i visible in the Grand Canyon. Which of the following is the best title for this passage? A The Grand Canyon (B Geology (C Tilted Rocks (D Unconformities (DD Ine MId-Ucean Kidge You've probably heard of the Himalayas, the Andes, the Appalachian Mountains, and the Rocky Mountains. After all, they're impressive mountain ranges. But you might not have heard of the mid-ocean ridge system- despite the fact that if forms the most extensive chain of mountains on Earth. So, why isn't a mountein range this big more familiar? Perhaps because more than ninety percent of the mountain range lies in the deep ocean. The massive mid-ocean ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers. The majority of the the key details to create a summary of the text. The mid-ocean ridge system remains mysterious, since only a tiny fraction has been explored. Mid-ocean ridiges spread at different rates, leading to different physical features. The Mid-Ocean Ridge You've probably heard of the Himalayas, the Andes, the Appalachian Mountains, and the Rocky Mountains. After all, they're impressive mountain ranges. But you might not have heard of the mid-ocean ridge system- despite the fact that it forms the most extensive chain of mountains on Earth. So, why isn't a mountain range this big more familiar? Perhaps because more than ninety percent of the mountain range lies in the deep ocean. The massive mid-ocean ridge system wraps around the globe like seams on a baseball, stretching an impressive 65,000 kilometers. The majority of the What is the main focus of the text? what the mid-ocean ridge system is like why the mid-ocean ridge system is more important than other mountain ranges why people haven't studied the mid-ocean ridge system
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