Answer:
Caucasus Mountains separates Europe from SouthWest Asia.
Explanation:
Caucasus is mountain range that streches between Blask Sea and Caspian Sea in west-east direction. This range is politically located in parts of Russia, Georgia, Azerbaijan and Armenia. It's highest point is Elbrus (5,642 m).
Caucasus is natural border between Asia and Europe. To the west border between mentioned continents runs over <em>Black Sea</em>, and in the opposite direction, over <em>Caspian Sea</em>.
Further to the west Europe and Asia are divided by <em>Bosphorus</em>, <em>Sea of Marmara</em> and <em>Dardanelles</em>.
The Richter scale is used, from 0.1 to 9.0 magnitude. The Richter scale is determined from the logarithm of the amplitude of waves recorded by seismographs.
The correct answer is - cyanobacteria.
The atmospheric oxygen came from the cyanobacteria. These were one of the earliest living organisms on Earth. The cyanobacteria was using photosynthesis in order to create its own food. The photosynthesis process requires sunlight, carbon dioxide, water, and oxygen. The oxygen is mostly released as a waste product from the process of photosynthesis, thus the cyanobacteria were literally releasing oxygen that was ending up into the atmosphere. As more and more cyanobacteria there were across the planet, more and more oxygen they were releasing into the atmosphere, slowly changing the composition of the atmosphere, and setting the basis of it as we know it now.
Answer:
Hey!
Your answer is A-LATITUDINAL LINES
Explanation:
Latitudinal lines run parallel to the equator...in other words, they run along the "width" of the Earth (EAST TO WEST)
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