Answer:
Our best guesses are that life began somewhere between 3.5 Billion and 3.8 Billion years ago
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 measures less than 435 is 1 to 434
A two-column proof contains a table with a logical series
of statements and reasons that reach a conclusion. It is commonly present
in geometry. Two column proofs always have two columns: statements and reasons.
The other choices don’t fit in the definition of two column proof.
