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krek1111 [17]
2 years ago
15

The earth's crust is thick melted rock true or false

Geography
1 answer:
adoni [48]2 years ago
4 0
False, the earths crust is thick solid rock.
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The fossil record provides a glimpse into the evolution of life on Earth. It shows that there have been remarkable changes in th
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Answer:

  • Archean Eon.
  • Hadean eon.
  • Cenozoic eon
  • Mesozoic eon.
  • Proterozoic Eon
  • Paleozoic eon

Explanation:

  • The Proterozoic Eon continued for about 2,500 to 541 mn years ago and it preceded the Archean. Consisting of the deepwater deposits and the strata,  and showed a rapid continental acceleration and the occurrence of the first known glaciations also to place.
  • The paleozoic eon was for about 542 to 251mn years ago and it was divided into the six geological period ad they started after the breakup of the supercontinent as Pangea.
  • The archean eon is an eon that was for about4,000 to 2,500 mn years ago with a tectonic layer of rocks and rocks were more active than they are now. Formation of the mudstone and the volcanic sediments.
  • The Mesozoic era was about 252 to 66 mn years ago and it was the age of reptiles and the coniferous, as Mesozoic is the middle life and is one of the three eras of the Phanerozoic eon.
  • Cenozoic is a new life and is the most recent phase of the geologic eras. ad extends from about 66 mn yer ago. Known as the extinction event of the earth.
  • Hadean eon stared with the formation of the earth 4.6 billion years ago.
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What is the principle of original horizontality
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It states that layers of sediment are originally deposited horizontally due to the effects of gravity.
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Assignment
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Answer:

Explanation:

2/7 = 8/28

1/4 = 7/28

The

8+7 = 15 so 15/28 of lawn has been mowed, therefore 13/28 of the lawn is left still to be mowed.

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Some astronomers study the universe and all the matter in it. They want to find out how big and how old the universe is. Which s
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The universe is all the planets and stars that orbit the sun

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Cooling because of air expansion is called ________.
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The answer is - adiabatic lapse rate.

Adiabatic lapse rate refers to the rate at which the air expansion cools. For the dry air it has the value of 9.8 degrees per kilometer. When the air that is saturated starts rising and cools, the process of condensation of water vapor begins, releasing latent heat in the process. 
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