Relative dating of rock layers worksheet icq dating com
A fossil can be studied to determine what kind of organism it represents, how the organism lived, and how it was preserved.
However, by itself a fossil has little meaning unless it is placed within some context.
This is a method that does not find the age in years but is an effective technique to compare the ages of two or more artifacts, rocks or even sites.
It implies that relative dating cannot say conclusively about the true age of an artifact.
(1) carbon dioxide and methane (2) oxygen and nitrogen (3) hydrogen and helium (4) ozone and chlorine The average temperature at Earth’s North Pole is colder than the average temperature at the Equator because the Equator (1) receives less ultraviolet radiation (2) receives more intense insolation (3) has more cloud cover (4) has a thicker atmosphere On a certain day, the isobars on a weather map are very close together over eastern New York State.
To make the people of this area aware of possible risk to life and property in this situation, the National Weather Service should issue (1) a dense-fog warning (2) a high-wind advisory (3) a heat-index warning (4) an air-pollution advisory A strong west wind steadily blew over Lake Ontario picking up moisture.
For example, based on the primate fossil record, scientists know that living primates evolved from fossil primates and that this evolutionary history took tens of millions of years.
This snow fell from clouds that formed when rising air was (1) cooled by expansion, causing water vapor to condense (2) cooled by compression, causing water vapor to condense (3) warmed by expansion, causing water vapor to evaporate (4) warmed by compression, causing water vapor to evaporate During a rainfall, surface runoff will probably be greatest in an area that has a (1) steep slope and a clay-covered surface (2) steep slope and a gravel-covered surface (3) gentle slope and a grass-covered surface (4) gentle slope and a tree-covered surface The cross section below illustrates the general sorting of sediment by a river as it flows from a mountain to a plain.The age of the fossil must be determined so it can be compared to other fossil species from the same time period.Understanding the ages of related fossil species helps scientists piece together the evolutionary history of a group of organisms.These changes typically occur so slowly that they are barely detectable over the span of a human life, yet even at this instant, the Earth's surface is moving and changing.As these changes have occurred, organisms have evolved, and remnants of some have been preserved as fossils.