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Age structure: This entry provides the distribution of the population according to age.Information is included by sex and age group as follows: 0-14 years (children), 15-24 years (early working age), 25-54 years (prime working age), 55-64 years (mature working age), 65 years and over (elderly).
Explore this link for additional information on the topics covered in this lesson: This activity will help students to have a better understanding of the basic principles used to determine the age of rocks and fossils. Objectives of this activity are: 1) To have students determine relative age of a geologically complex area.
Paleolithic is a word that comes from the two Greek words The first stone tools were used to meet people's three basic needs of food, shelter, and clothing.
These were difficult times; there were no stores to buy food, and people had to cooperate in small groups to make clothing and shelter.
Students not only want to know how old a fossil is, but they want to know how that age was determined.
Some very straightforward principles are used to determine the age of fossils.
Scientists have developed a new method to determine the age of ancient mummies, old artwork, and other relics without causing damage to these treasures of global cultural heritage.