Conceptual Physical Science Explorations
2nd Edition
ISBN: 9780321567918
Author: Paul G. Hewitt, Leslie A. Hewitt, John A Suchocki
Publisher: Addison Wesley
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Chapter 25, Problem 18TE
To determine
Definition of a fossil and their use in the study of geology.
Expert Solution & Answer
Answer to Problem 18TE
The remains of organic matter that are not decomposed by microorganisms are converted into biochemical sediments over a period of time. These sediments are known as fossils as they help to determine the Earth’s geologic history.
Explanation of Solution
A fossil is basically the remains of organic matter of early organic species. When some of their organic matter is not decomposed by bacteria, then over a period of time, it is converted into biochemical sediments known as fossils. Some examples are coal, oil and gas.
The fossils are used in the study of geology as they are made of remains of organic species from the past. They help to determine the Earth’s geologic history. They can indicate that from where and how sediment is formed or deposited. They additionally assist in classifying same kind of rocks from distinct places that are of comparable geologic age. Hence, fossils are very useful in the study of geology.
Conclusion:
Therefore, the remains of organic matter that are not decomposed by microorganisms are converted into biochemical sediments over a period of time. These sediments are known as fossils as they help to determine the Earth’s geologic history.
Chapter 25 Solutions
Conceptual Physical Science Explorations
Ch. 25 - Prob. 1RQCh. 25 - What is the most abundant element for Earth as a...Ch. 25 - What is the most abundant element in Earths crust?...Ch. 25 - What is a mineral?Ch. 25 - What physical properties are used to identify...Ch. 25 - Most mineral samples do not display their crystal...Ch. 25 - Why is color not always the best way to identify a...Ch. 25 - What is the difference between a silicate mineral...Ch. 25 - What is the most abundant mineral in Earths crust?...Ch. 25 - What is the process of crystallization?
Ch. 25 - Prob. 11RQCh. 25 - What are the most common igneous rocks, and where...Ch. 25 - Prob. 13RQCh. 25 - Prob. 14RQCh. 25 - What are three common types of plutons?Ch. 25 - Prob. 16RQCh. 25 - What is a clastic sedimentary rock?Ch. 25 - When water evaporates from a body of water, what...Ch. 25 - What is metamorphism? What causes it?Ch. 25 - Distinguish between foliated and nonfoliated...Ch. 25 - What three sources of heat contributed to the...Ch. 25 - Which type(s) of rock is (are) made from...Ch. 25 - Prob. 3TECh. 25 - What two mineral groups provide the most of the...Ch. 25 - Prob. 5TECh. 25 - Is cleavage the same thing as crystal form? Why or...Ch. 25 - Are the Hawaiian Islands made up of primarily of...Ch. 25 - Where does most magma originate?Ch. 25 - What patterns of alteration are characteristic of...Ch. 25 - In what two ways does sediment turns into...Ch. 25 - Name two mica minerals that can give a metamorphic...Ch. 25 - How is foliation different from sediment layering?Ch. 25 - What are the two processes by which rock is...Ch. 25 - Prob. 14TECh. 25 - Each of the following statements describes one or...Ch. 25 - How do chemical sediments produce rock? Name two...Ch. 25 - How are the most carbonates rocks formed?Ch. 25 - Prob. 18TECh. 25 - Prob. 19TECh. 25 - Th factors that influence bond strength influence...Ch. 25 - Gold has a density of 19.3g/cm3 . A 5-gal pail of...Ch. 25 - Prob. 1RATCh. 25 - Compaction and cementation of sediments leads to...Ch. 25 - Why are silicon and oxygen concentrated near...Ch. 25 - All of the following can occur during metamorphism...Ch. 25 - The most characteristic feature of sedimentary...Ch. 25 - In a sedimentary rock, the degree of particle...Ch. 25 - The characteristics of regional metamorphism...Ch. 25 - Coarse-grained plutonic igneous rocks occur...Ch. 25 - What most strongly influences a minerals hardness?...Ch. 25 - Prob. 10RAT
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