GEOLOGY

EARTH SCIENCE

TECTONICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
a single continent made up of all of Earth’s landmass long ago
A
North America
B
Pangaea
C
continental drift
D
tectonic plates
Explanation: 

Detailed explanation-1: -From about 300-200 million years ago (late Paleozoic Era until the very late Triassic), the continent we now know as North America was contiguous with Africa, South America, and Europe. They all existed as a single continent called Pangea.

Detailed explanation-2: -Pangea was the last supercontinent, a giant conglomeration of all the continents. It formed 300 million years ago when the tectonic plates that make up Earth’s crust modified and rearranged themselves, bringing the continents together.

Detailed explanation-3: -Early Gondwana (pre-Pangea, 550-336 mya) It didn’t contain all land on Earth, or even close to it, really. Nearly of Earth’s modern southern hemisphere landmasses were part of Gondwana. In addition, the Arabian peninsula, North Africa, and the Indian subcontinent were part of Gondwana.

Detailed explanation-4: -In geology, a supercontinent is the assembly of most or all of Earth’s continental blocks or cratons to form a single large landmass.

Detailed explanation-5: -About 200 million years ago Pangaea broke into two new continents Laurasia and Gondwanaland. Laurasia was made of the present day continents of North America (Greenland), Europe, and Asia. Gondwanaland was made of the present day continents of Antarctica, Australia, South America.

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