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defon
3 years ago
6

Definition of paleomagnetism

Geography
2 answers:
Rasek [7]3 years ago
7 0

Answer:

Paleomagnetism means the study of the record of the Earth's magnetic field in rocks, sediment, or archeological materials.

Dafna1 [17]3 years ago
6 0

Answer:

the branch of geophysics concerned with the magnetism in rocks that was induced by the earth's magnetic field at the time of their formation. Paleomagnetism (or palaeomagnetism in the United Kingdom) is the study of the record of the Earth's magnetic field in rocks, sediment, or archaeological materials. Certain minerals in rocks lock-in a record of the direction and intensity of the magnetic field when they form. This record provides information on the past behavior of Earth's magnetic field and the past location of tectonic plates.

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What are the geographic perspectives on climate change in Canada; list for the following:
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Our climate is characterized by high variability, on both seasonal and annual scales. Although our economy, health and infrastructure are generally well adapted to current climate conditions, our vulnerability to climate is clearly evidenced by the impacts resulting from extreme weather and climate events. Losses from recent individual weather-related disasters in Canada are often in the hundreds of millions of dollars. Consider, for example, costs associated with the 2003 summer wildfires in British Columbia and Alberta ($400 million; Public Safety Canada, 2005), the 1991 and 1996 hailstorms in Calgary ($884 million and $305 million, respectively; Public Safety Canada, 2005), the 1997 Red River Flood ($817 million; Public Safety Canada, 2005) and 2003 Hurricane Juan in Halifax ($200 million). Multibillion dollar disasters also occur, including the 1998 ice storm in eastern Canada ($5.4 billion) and the Saguenay flood in 1996 ($1.7 billion; Public Safety Canada, 2005). The 2001 -2002 droughts, which were national in scale, resulted in a $5.8 billion reduction in gross domestic product (Wheaton et al., 2005). Extreme weather and climate events impact the health and well-being of Canadians beyond monetary costs, as they frequently involve displacement, injuries and loss of life. For example, the 1998 ice storm led to the greatest number of injuries (945) and 17 800 evacuations (Public Safety Canada, 2005). Unusually heavy rainfall following a period of drought was a contributing factor to the E. coli outbreak in Walkerton, Ontario in 2000 that resulted in seven deaths and thousands of people becoming ill (O 'Connor, 2002).

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5 0
3 years ago
A radioactive isotope, Phlebotinum, decays into Dilithium with a half-life of 42 million years. If we find a rock with 25% Phleb
sineoko [7]

Answer:

time taken for 25% Phlebotinum and  75% Dilithium is 168 million years

Explanation:

radioactive isotope of Phlebotinum decays into Dilithium.

time taken to half life takes = 42 million years

half life means that the Phlebotinum is 50% and  Dilithium is also 50%

and now it is given that  Phlebotinum is 25% and Dilithium is 75%

hence this condition will come after two half lives.

for one half life it takes  42 million years

and for second half life time becomes 4 times of first half life

time for 25% Phlebotinum and  75% Dilithium is  = 4 × 42

     =  168 million years.

hence time taken for 25% Phlebotinum and  75% Dilithium is 168 million years

                                 

6 0
3 years ago
Which statement is true?
katrin [286]
The best and most correct answer among the choices provided by your question is the third choice or letter C.

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I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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