What is the purpose of planetary accretion gravity?
A) holds satellites in the gravity of Earth
B) pulls small particles, such as dust and debris, into larger objects
C) pulls the mass of the nebular disk to its center
D) binds particles together by hydrogen bonding
Answer: B
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Which one of the following aquifers would be best for purifying groundwater that is contaminated with harmful sewage bacteria?
A. coarse gravel with few small grains B. sand C. highly fractured granite D. cavernous limestone
What is the elevation of this lowest location?
The question is based on this contour line map with elevations shown in feet.
• North is to the top of the map.
• Streams are shown with dashed lines.
• A graphic scale for measuring horizontal distances is shown below the map.
• Estimate elevations between contour lines to the nearest half-contour interval; assume that the top of a
hill is one-half-contour interval higher than the highest contour line shown.
What will be an ideal response?
The pressure gradient force and the friction force together produce geostrophic winds along Earth's surface
Indicate whether the statement is true or false
What characteristics of the climate in these regions would tend to limit the growth of forest?
Using the global map of biome distribution (Map T-30 in the back of the Lab Manual), the map of climate distribution (Map T-29), the maps of global temperature (Maps T-28a and T-28b), the map of global precipitation (on the inside front cover of the Lab Manual), as well as information about Köppen climate types from Exercise 23, answer the question. What will be an ideal response?