- 1.1: Why are scientists interested in the possibility of life beyondEarth?
- 1.2: People have long been interested in life beyond Earth. What isdiffe...
- 1.3: What do we mean by a geocentric universe? In general terms,contrast...
- 1.4: What are extrasolar planets? In what way does their discoverymake i...
- 1.5: What do we mean by a habitable world? Does a habitable worldnecessa...
- 1.6: What do we mean by the universality of physics and chem-istry? Alth...
- 1.7: Besides Earth, what worlds in our solar system seem mostlikely to h...
- 1.8: Could we actually detect life on an extrasolar planet and moonwith ...
- 1.9: What is the search for extraterrestrial intelligence (SETI)?
- 1.10: What do we mean by astrobiology? What other terms are some-times us...
- 1.11: An extrasolar planet is (a) a planet that is larger than our Sun;(b...
- 1.12: A habitable planet is (a) a planet that has oceans like Earth;(b) a...
- 1.13: By a geocentric view of the universe, we mean (a) the ancientidea t...
- 1.14: According to current scientific understanding, life on Earth(a) was...
- 1.15: The correct order for the eight official planets in our solar syste...
- 1.16: Today, the research known as SETI is conducted primarilyby (a) scan...
- 1.17: If we sent one of our current spacecraft to a nearby star (besidest...
- 1.18: Scientists today are interested in searching for life on Mars be-ca...
- 1.19: Based on current evidence, the object in our solar systemmost likel...
- 1.20: Based on the way scientists view the study of astrobiology,failure ...
- 1.21: Aliens Among Us. Take an informal poll of your friends or class-mat...
- 1.22: Conducting the Search. Given the large number of possible placesto ...
- 1.23: Funding for Astrobiology. Imagine that you are a member of Con-gres...
- 1.24: Astrobiology News. Go to NASAs Astrobiology home page andread some ...
- 1.25: The NASA Astrobiology Institute. Go to the home page for theNASA As...
- 1.26: International Astrobiology. Search the Web for information onastrob...
- 1.27: The Search for Extraterrestrial Intelligence. Go to the home pagefo...
Solutions for Chapter 1: A Universe of Life?
Full solutions for Life in the Universe (Bennett Science & Math Titles) | 3rd Edition
Smaller earthquakes that follow the main earthquake.
The smallest particle that exists as an element.
The dry, gently sloping zone on the backshore of a beach at the foot of the coastal cliffs or dunes.
A type of unconformity in which the beds above and below are parallel.
Very small galaxies, usually elliptical and lacking spiral arms.
The movement of a tidal current away from the shore.
The incorporation and transportation of material by a mobile agent, such as water, wind, or ice.
A compositional group of igneous rocks that indicates a rock is composed almost entirely of light-colored silicates.
A line drawn on a map connecting points of equal atmospheric pressure, usually corrected to sea level.
A mass of hotter-than-normal mantle material that ascends toward the surface, where it may lead to igneous activity. These plumes of solid yet mobile material may originate as deep as the core–mantle boundary.
The downslope movement of rock, regolith, and soil under the direct influence of gravity.
A term often used synonymously with hypothesis but is less precise because it is sometimes used to describe a theory as well.
Mohorovicˆi´c; discontinuity (Moho)
The boundary separating the crust from the mantle, discernible by an increase in seismic velocity.
A chemical reaction in the atmosphere that is triggered by sunlight, often yielding a secondary pollutant.
A drainage pattern characterized by numerous right-angle bends that develops on jointed or fractured bedrock.
Soil developed directly from the weathering of the bedrock below.
The concentration of minor amounts of metals that are scattered through unweathered rock into economically valuable concentrations by weathering processes.
A marshy or muddy area that is covered and uncovered by the rise and fall of the tide.
Found almost exclusively in the Northern Hemisphere or at high altitudes in many mountainous regions. A treeless climatic realm of sedges, grasses, mosses, and lichens that is dominated by a long, bitterly cold winter.
The movement of water in an erratic fashion, often characterized by swirling, whirlpool-like eddies. Most streamflow is of this type.