One cell organisms evolved in the Precambrian during the __________
Fill in the blank(s) with the appropriate word(s).
Answer : Archean Era
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Why did the Russian military invade Georgia in 2008?
A) because the Kazakh forces attempted to take Georgian territory from the Russians B) as a warning to Chechen rebels to desist from any future terror attacks on Russian soil C) to establish forward military bases from which to attack Turkey D) because the Georgian government attempted to establish control over the regions of Abkhazia and South Ossetia, which are two regions dominated by Russian sympathizers E) because the Georgian government aided terrorists who committed various terror attacks within Russia
Define the term rock. How do rocks differ from minerals?
What will be an ideal response?
The type of aerosol that warms the atmosphere by absorbing solar radiation and increasing the surface albedo of snow and ice is called:
A) nitrous oxide. B) dark matter. C) black carbon. D) smoke particulate.
The primary purpose of a map is:
a. spatial and locational communication b. navigation c. realistic depiction of Earth's -boundaries d. data collection