GPT Test 1 Questions with 100% Correct Answers 2024/2025
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GPT
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GPT
GPT Test 1 Questions with 100% Correct Answers 2024/2025
The half-life of a radioactive isotope is? - ANSWERSthe time it takes for half of the radioactive atoms to decay
The absolute age of a geologic event in the rock record is - ANSWERSthe number of years that has elapsed between the even...
GPT Test 1 Questions with 100% Correct
Answers 2024/2025
The half-life of a radioactive isotope is? - ANSWERSthe time it takes for half of the radioactive atoms to
decay
The absolute age of a geologic event in the rock record is - ANSWERSthe number of years that has
elapsed between the event and the present day
A rock formed with 1000 atoms of a radioactive parent element, but contains only 250 radioactive
parent atoms today. If the half-life for the radioactive element is one million years, how old is the rock? -
ANSWERS2 million years old
Radiometric dating is possible if a rock contains a measurable amount of - ANSWERSboth daughter and
parent atoms
A break-through in our attempts to accurately date the Earth came when - ANSWERSradioactivity was
discovered
The Panerozoic is composed of: - ANSWERSPaleozoic, Cenozoic, Mesozoic
Carbon-14 has a half-life of approximately _______ years and is therefore suitable to dating objects
younger than approximately_________years? - ANSWERS6 thousand and 70 thousand
Geology uses two types of dating: - ANSWERSrelative dating and absolute dating
Who's work was the basis for the principle of uniformitarianism and the unavoidable necessity of a great
age for the Earth? - ANSWERSJames Hutton
, Which of the following were not among the early attempts to determine the Earth's age? - ANSWERSThe
rate at which water precipation accumulated in the ocean
Match the man and the method for dating the Earth. - ANSWERSCharles Lyell - salt of the seas
Someone brings of a piece of wood from Noah's Arc and asks you to date the Arc? Which dating method
is most appropriate for that task - ANSWERSRadiocarbon dating
Varves are: - ANSWERSa pair of layers formed in glacial lakes
What type of metamorphism is caused by high temperature and high pressure imposed over a large
volume of crust? - ANSWERSregional
The prograde part of a metamorphic P-T path occurs during - ANSWERSburial and heating
Which of the following is a general pressure in all directions, such as the pressure that the atmosphere
exerts? - ANSWERShydrostatic pressure
Marble is a metamorphic rock that forms from __ - ANSWERSlimestone
Which of the following metamorphic rocks cannot form from a shale? - ANSWERSmarble
A rock is hydrothermally altered by burial. If the rock is buried to 3 km dept and the local geothermal
gradient is 30 ˚C per km, then approximately how hot is the rock? Pick the closest value. - ANSWERS120
degrees celcius
Which of the following metamorphic rocks may have visible fossils? - ANSWERSmarble
Metamorphic rocks may form from: - ANSWERSany of the major rock types
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