Answer:
A. Primary
A. Primary
Explanation:
Jobs focused on obtaining natural resources or raw materials are part of the _Primary_________ economic sector.Jobs focused on obtaining natural resources or raw materials are part of the ____Primary______ economic sector. A. primary B. secondary C. tertiary D. quaternary Please select the best answer from the choices provided A B
Answer:
A. Cambrian explosion , Active plate margin, True.
Explanation:
- The burgess shale is a window into life on earth during the exposition of Canadian Rockies. Itis one of the earlier imprints containing the soft part imprints.
- Fossil deposits of burgess shale correlate to the Stephen formation. that were collected about 508 million years ago. Beds were deposited at the base of the cliffs 160 meters tall.
- North American plate is considered as an active plate margin, as this margin is moving westwards. And the pacific plate is shrinking in size. The presence of Icelandic Arcand festoons depicts this.
- The laptus ocean in the paleozoic era was an Icelandic volcano found in the ancient oceanic crust of ophiolites of Newfoundland. This ocean was earlier also named as the titan impetus.
Smoke and lava generally escape from a shield volcano through the caldera. A caldera is a large, special form of volcanic crater formed by the collapse of a volcano into itself. The emptying of the magma chamber beneath the volcano triggers the caldera to collapse, resulting from a large volcanic eruption.<span>
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I think it is a or b unless i am really wrong