Test Answers on Earth Science Flashcards

Bohr Model A model of an atom, proposed by Niels Bohr, in which a small positively charged nucleus is surrounded by orbiting electrons, similiar to a miniature solar system Heisenberg Uncertainty Principle The physical limitation that the product of the position and the momentum of a particle cannot be smaller than a well-defined value, Planck’s […]

Precambrian Name for the time in earths early history that accounts for ninety percent of earth’s time, but only cellular organisms lived. Paleozoic Era the part of geologic time 570-245 million years ago ; invertebrates, fishes, amphibians, reptiles, ferns, and cone-bearing trees were dominant Mesozoic Era middle life (245-144 million years ago); rise of mammals […]

question The ________ drives the move to the suburbs from cities. answer desire to live in less stressful, more peaceful park-like conditions question All of the following factors have contributed to movement of people to suburbs except ________. answer greater availability of mass transit question The world’s urban populations are ________. answer growing faster than […]

question Cyanobacteria, forming atmosphere answer Earliest life forms (such as ___) were influenced by the climates produced by the ______ ______ and oceans of Earth question Volcanic Activity, extremely difficult, did not answer During the Precambrian time ____ ____ was one of the most natural events but lava flows, ash clouds in the atmosphere, and […]

question coccolithophores answer biogenous sediment question halite answer hydrogenous sediment question metal sulfides answer hydrogenous sediment question siliceous ooze answer biogenous sediment question tektites answer cosmogenous sediment question ice rafting answer associated with glacial deposits question turbidite answer associated with submarine canyons and deep-sea alluvial fans question siliceous ooze answer does not fit question Describe […]

question population ecology answer study of the biotic and abiotic factors that affect population size, density, distribution, and age structure question population answer a group of individuals of a single species that occupy the same area at the same time question what are 2 important characteristics that a population includes answer density (amount of individuals) […]

question Although we can divide the history of the universe into many distinct \”eras,\” sometimes it’s useful just to have a broad perspective on what events occurred in the very early universe and what events occurred later. Listed following are events that occurred either before or after the first five minutes in the history of […]

question The ________ period was a time of major extinctions, including 75 percent of amphibian families. answer Permian question During the early Paleozoic era, South America, Africa, Australia, Antarctica, India, and perhaps China comprised the vast southern continent of ________. answer Gondwanaland question The most common Precambrian fossils are ________, layered mounds of calcium carbonate. […]

question Which of the following has your \”cosmic address\” in the correct order? answer You, Earth, solar system, Milky Way Galaxy, Local Group, Local Supercluster, universe. question Using the ideas discussed in your textbook, in what sense are we \”star stuff\”? answer Nearly every atom from which we are made was once inside of a […]

question The Sun’s path, as viewed from the equator, is highest in the sky on _________. answer the spring and fall equinoxes question For most of history, the lack of observable stellar parallax was interpreted to mean that _________. answer Earth is stationary at the center of the universe question Which of the following statements […]

question The main reason that most professional research telescopes are reflectors is that: answer large mirrors are easier to build then large lenses question Primary purpose of astronomical Telescope? answer to collect a lot of light and bring it to focus question Most important advantage of CCD’ over film is? answer they record much more […]

question ______, ________, and ________ build up structures on the terrestrial planets, while ______ tears them down a.impacts, erosion, volcanism; tectonism b. impacts, tectonism, volcanism; erosion c. tectonism, volcanism, erosion; impacts d. tectonism, impacts, erosion; volcanism answer ANSWER B IMPACTS, TECTONISM, VOLCANISM; EROSION question If crater A is inside crater B, we know that a. […]

question Assuming that other planetary systems form in the same way as our solar system formed, where would you expect to find terrestrial planets? answer Terrestrial planets will likely be located nearer the planetary system’s star than any jovian planets. question Which planet is approximately halfway between Pluto’s orbit and the Sun? answer Uranus, the […]

question Part A The history of the universe can be divided into seven major phases. Taken together, these phases make up the cosmic evolutionary scheme—the continuous transformation of matter and energy that has led to the appearance of life and civilization on Earth. Rank the phases in the history of cosmic evolution from earliest to […]

question Compaction will be the most significant lithification process for which of the following rocks? answer Shale question T/F: Folding and deformation will produce bituminous coal. answer False question T/F: The raw material for coal is dead marine organisms. answer False question Which rock is the most abundant chemical sedimentary rock? answer Limestone question ________ […]

question made when sediments fill in a cavity made when an object decayed and the sediments harden into rock answer cast question Index fossils are the remains of species that existed on Earth for relatively short periods of time. answer true question What are index fossils used to determine? answer the age of the surrounding […]

question Sizes of universe- largest to smallest answer The universe, the local supercluster, the local group, the Milky Way Galaxy, our solar system, the sun, Jupiter, earth question Distances from longest to shortest answer The distance from the Milky Way Galaxy to the Andromeda Galaxy, The distance from the sun to the center of the […]

question 1. What is the main mechanism by which the lower atmosphere of Earth is heated? a. Sunlight heats Earth’s surface and the resultant heat is transferred to the atmosphere by infrared radiation and convective gas motions. b. Conduction carries heat from Earth’s interior to the surface where conduction in the lower atmosphere transfers this […]

question 1) Mesozoic Era 2) Precambrian Time 3) Cenozoic Era 4) Paleozoic Era answer 1) b 2) d 3) a 4) c question What is a Period answer A unit of geologic time that subdivides eras. question What is Geologic Time Scale answer A record of the geologic events and the evolution of life forms […]

question Part A – Ranking Task Consider the indicated events in the history of the universe that have helped make human life possible. Rank the events based on when they occurred, from longest ago to most recent. To rank items as equivalent, overlap them. Note: If two events occurred within seconds of each other, rank […]

question Besides water, what does the water cycle transfer around the earth? answer latent heat energy question Which statement below is not a way in which water affects the earth and the living things upon it? answer Water is the power source that keeps the water cycle moving through all parts of the planet. question […]