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There are 2 electrons on the first energy level, 8 electrons on the second level, 8 electrons on the third energy level, and 1 on the fourth energy level. Explain that after the third energy level has 8 electrons, the next electron goes into the fourth level.
Explanation:
The answer is; B
When the ocean waters in the Pacific ocean warm up and the currents begin to move eastwards towards the Western South American coast, then an El Nino is declared. This phenomenon also shifts tropical storms eastwards due to the exchange of heat between the hydrosphere and the atmosphere. El Nino occurs in a cycle every three to five years.
The business of Parliament<span> takes place in </span>two Houses<span>: the </span>House<span> of Commons and the </span>House<span> of Lords. Their work is similar: making laws (legislation), checking the work of the government (scrutiny), and debating current issues.</span>
Answer:
The H.M.S. Challenger embarked from Portsmouth, England on December 21, 1872 and changed the course of scientific history. Physicists, chemists, and biologists collaborated with expert navigators to map the sea. This interdisciplinary spirit has continued to the present day. During the 4 year journey, the voyages circumnavigated the globe, sounded the ocean bottom to a depth of 26,850 feet, found many new species, and provided collections for scores of biologists.
C. Wyville Thomson led the expedition but died of exhaustion from the journey, which ended on May 24, 1876. The Challenger had zig-zagged around the globe and had visited every continent, including Antarctica.
The reports of the Challenger expedition were supervised by Sir John Murray, whose biological conclusions were of great importance to the later development of marine biology. He concluded, for example, that the deep-sea fauna was not "ancient," in that it did not resemble the faunas found in ancient fossil deposits.
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