Answer:
Some cratons in Canada and Greenland shelter the oldest continental rocks in the world, about 4 billion years old. Other cratons in South Africa, Australia and Asia have continental rocks that are 3 billion years old. The oldest seafloor is comparatively very young, approximately 280 million years old.
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Answer:
3 half live have passed.
Explanation:
After 1 half-life , 500 g of the parent isotope will remain. After 2 half-lives , 250 g of the parent isotope will remain. After 3 half-lives , 125 g of the parent isotope will remain.
Jacques Cartier was the Italian explorer who led expeditions for France, exploring the east coast of America and hoping to discover a route to Asia.
Because land trade routes were costly and hazardous, Europeans wanted a direct sea route to Asia. They also wanted to avoid the middleman to save money and get more merchandise, and the European nations wanted to assert their own dominance.
The shoreline where the East Coast of America meets the North Atlantic Ocean is referred to as the East Coast of America, also known as the Eastern Seaboard, the Atlantic Coast, and the Atlantic Seaboard.
Most people associate Jacques Cartier with his expeditions of various regions of Canada. Even the name of the nation is attributed to him. Despite the fact that Cartier gave his destination the name "Canada," the word actually originates from the Iroquois-Huron tongue.
To learn more about Italian explorer here: brainly.com/question/17517347
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