Comets Study guides, Class notes & Summaries

ASTRONOMY CHAPTER 7___ __ is when we study and compare planets next to each other to understand their similarities and differences - correct answer Comparative planetology Comparative planetology includes moons, asteroids, and comets as well as planets - correct answer Our planets orbit it the same __ and nearly the same __ around the sun - correct answer direction; plane The sun is composed of 98% ____ and 2% ____ - correct answer Hydrogen; Helium The sun is the ___ and ___ object ...

How much of the Earth's water is found in the ocean? - 97% There were multiple sources of water that contributed to the ocean. How was the majority of the ocean's water formed? - The condensation and cooling of water vapor What caused Earth to partially melt when being formed? - -Impact of asteroids, comets, and debris -Gravitational compression -Accumulation of decaying radioactive elements What was the main requirement for the development of life on Earth? - Absence of free oxygen Wh...

Brooks Biodiversity Unit 1 Exam with Complete Solutions evolution the concept that all given organisms are related to each other though common ancestry Have scientists proven that life exists? No Big Bang Theory of how the universe formed 16-18 billion years ago Symbiosis the interaction between two different organisms living in close association "life coming together" Spontaneous Generation Theory that life arose spontaneously from inanimate matter. Not a widely held beli...

CSET Multiple Subjects: Subtest 2 -Science questions and answers 2023Planets -Divided into two main types: large, low-density gas giants and smaller, rocky terrestrials -There are at least 341 identified planets, 8 of which are in the Solar System Solar System -4 terrestrials: Mercury, Venus, Mars, Earth -4 gas giants: Jupiter, Saturn, Uranus, Neptune -At least 5 dwarf planets: Ceres, Pluto, Makemake, Haumea, Eris Venus -Takes approx. seven and a half earth months for Venus t...

AST101 Clicker Quizzes UofT with 100% Correct Answers What does the term "Solar System" mean? - Answer- The Sun, the planets, and all of their moons What does the term "Universe" mean? - Answer- The totality of all space, time, energy, and matter Earth is 1 AU from the Sun. What is the maximumpossible separation between Earth and Mars? (Hint: Mars is the next farthest planet from the Sun) - Answer- 2.5 AU A 'light year' is a measure of: - Answer- distance Stars are... - Answer- bal...

How was the solar system formed? - -a supernova (explosion of a start when it runs out of fuel) -4.6 billion years ago how was the earth formed? - -a nebula made of gas and dust -was formed 4.5 billion years ago how did oceans form? - -A volcanic expulsion - rained for thousands of years -hit by an icy comets -volcanic out gassing and ice from comets when did life form? - -3.7 billion years ago how long have animals been around for? - -600 million years ago how long has pho...

_____________________ is the study of the history of life on Earth. : Paleontology Earth is believed to be _________________________________. : 4.5 billion years old protects Earth from harmful solar wind particles; responsible for the Northern Lights (Aurora Borealis); lies deep within the Earth : Earth's Magnetic Field charged particles escape from the sun's gravitational pull : Solar Wind What would be most different about an object on Mars than Earth? : Weight What are the four...

AST101 Clicker Quizzes UofT with 100% Correct Answers What does the term "Solar System" mean? - Answer- The Sun, the planets, and all of their moons What does the term "Universe" mean? - Answer- The totality of all space, time, energy, and matter Earth is 1 AU from the Sun. What is the maximumpossible separation between Earth and Mars? (Hint: Mars is the next farthest planet from the Sun) - Answer- 2.5 AU A 'light year' is a measure of: - Answer- distance Stars are... -...

Test Bank for Foundations of Astronomy, 14e 14th Edition by Michael A. Seeds, Dana Backman. Full Chapters test bank included Part 1: Exploring the Sky Chapter 1: Here and Now 1-1 Where Are We? 1-2 When Is Now? 1-3 Why Study Astronomy? Chapter 2: A User's Guide to the Sky 2-1 Stars and Constellations 2-2 The Sky and Celestial Motions 2-3 Sun and Planets 2-4 Astronomical Influences on Earth's Climate Chapter 3: Moon Phases and Eclipses 3-1 The Changeable Moon 3-2 Lunar Eclipses...

origin of earth - Answer-• Supernova: death of a star (great explosion) • Supernova happened 4.6 bya, dust and gas flattens to a disk and spins faster due to gravity and solar nebula formed. • Solar Nebula: describes formation of Earth 4.5 bya • Nebula: gas cloud origin of oceans - Answer-• volcanic explosion, H2O condensed and rained down for thousands of years to create oceans • icy comets hitting earth (responsible for 1/2 of earths ocean water) origin of life - Answer-•...