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Earth Science
For Final
| Question | Answer |
|---|---|
| A first magnitude star is _ times brighter than a 5th magnitude star | |
| Most stars are in the stage of evolution | main-sequence star |
| The final stage for a star which is as massive as the Sun is a _ | black dwarf |
| These stars are produced during a supernova event | |
| Which color stars have the coolest surface temperature? | red |
| A star is which light cannot escape because of the immense gravitional pull at its surface is called a _ | black hole |
| The Sun is considered an average star T or F | True |
| When a main-sequence star has exhausted the fuel in the inner region, it becomes a _ | red giant |
| The measure of a star's brightness is called the _ | magnitude |
| Possibly the most cataclysmic event to occur in nature is_ | a supernova |
| Which main-sequence stars are the least massive? | red |
| The distance to stars can be determined from_ | stellar parallax |
| Which main-sequence stars are the most massive? | blue |
| The Sun belongs to this class of stars | main-sequence star |
| The point in stellar evolution when a star has used up all its fuel and is radiating away its remaining thermal energy as light is the _stage | white dwarf |
| This property of a star can be determined from its color | surface temperature |
| The final stage in the evolution of the most massive stars is a _ | black hole |
| Our galaxy is called the _ | Milky Way Galaxy |
| Which color stars have the highest surface temperature? | blue |
| Hubble's law states that galaxies are receding from us at a speed that is proportional to their _ | distance |
| One of the most common units used to express stellar distance is the _ | light-year |
| Which one of the objects listed below has the largest size? | galaxies |
| Based on the observed red shifts in the spectral lines of distant galaxies, astronomers conclude that _ | the universe is expanding |
| The most dense stars known to exist are_ | black holes |
| The discovery that the universe appears to be expanding led to a widely accepted theory called_ | the Big Bang |
| Which one of the following would most likely be covered with thick turbidite layers? | deep-sea face at the base of a continental slope |
| which of the following is NOT true of deep ocean trenches? | the are geologically very stable |
| Chesapeake Bay and Delaware Bay are | all of these |
| The oceans cover approximately _ pecent of Earth's surface | 70 |
| How do calcareous oozes form? | the particles ar precipitated in warm, surface waters and sink to the bottom |
| __ develop where oceanic lithosphere bends downward and sinks into the mantle | Deep ocean trenches |
| Fetch is ________. | none of these |
| A sand bar that completely crosses a bay, sealing it off from the open ocean is a ________. | none of these |
| Which ocean has the greatest average depth? | Pacific |
| The gently sloping submerged surface extending from the shoreline toward the deep ocean is termed the ________. | continental shelf |
| Which one of the following concerning mid-ocean ridges is false? | sediments include thick siliceous ooze deposits and sandy turbidite beds |
| It is thought that submarine canyons on the continental slope have been generated by ________ | turbidity currents |
| The presence of which one of the following would indicate that the land had been uplifted or that sea level had fallen | elevated marine terrace |
| Because of the Coriolis effect, surface ocean currents are deflected to the ________ of their path of motion in the Northern Hemisphere | right |
| Waves begin to "feel bottom" when the depth of water is ________. | equal to one-half the wavelength |
| The BEST definition of the outer edge of the continental shelf is that point where ________. | a rapid steepening of the gradient occurs |
| A sand ridge connecting an island to the mainland or to another island is a ________. | tombolo |
| Which one of the following would you NOT associate with turbidity currents? | formation of seamounts |
| Minerals that crystallize directly from seawater are examples of ________. | hydrogenous sediment |
| A ridge of sand projecting into a bay and often having a hooked end is a ________. | spit |
| Which one of the following is NOT part of the continental margin? | continental trench |
| The daily tidal range is GREATEST during ________ tide | spring |
| Which of the following is associated with ocean ridges? | all of these |
| Which one of the following is a landform created by wave erosion? | sea arch |
| Sediments derived primarily from the products of weathering on the continents are called ________. | terrigenous sediment |
| Seamounts ________. | are volcanoes that form on the ocean floor |
| The zigzag movement of sand grains along a beach is ________. | both caused by obliquely breaking waves and called beach drift |
| One result of wave refraction is that wave energy is concentrated ________. | on headlands projecting into the water |
| Concerning the distribution of land and water, which of the following statements is true? | the Southern Hemisphere has much more water surface than the Northern Hemisphere |
Created by:
schooolmom
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