Answer:
Hi,
Geologists obtain indirect evidence about the earth’s interior by studying seismic waves produced.
Explanation:
Geologists are able to study the layers of the interior of the earth by observing the seismic waves patterns. The recorded data for the waves can show how the waves traveled through the earth and the path followed which will reveal the structure of the interior of the earth. The speed and magnitude of the wave can further reveal the characteristics of the earth’s interior.
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It is the capital of Malta
Answer: Gravity made the dust and gas in the nebula collide, flattening these materials into a disk.
Explanation: The nebula theory is a scientific explanation of how the planets and our solar system were formed. It suggests that our solar system was formed more than 4 billion years ago due to the effect of gravity on a cloud of gas and dust which were flattened into a disk. The gravity was so great that the matter in the nebula were made to collide against each other until they were compacted to form our sun.
It changed so much because there were always European explorers heading out on voyages, for many reasons (like to trade with neighbouring countries, ferrying people from one land to the other, etc). During those voyages they found new lands, and so the maps had to be revised quite often because of these new discoveries.
