Answer: 1. Most of Russia lies in a "Humid Continental" Environment.
2. The highest population density is found in the "Western" part of Russia
Explanation: 1. The humid continental climate is the climate that has seasonal differences, that is warm to hot in summer and cold in winter.
2. The western part of Russia which is known as the European Russia is made up of 77% of the total population of Russia. It includes Moscow and Saint Petersburg which are the two major cities in Russia.
Coup d'etat is the right answer
The Cold War occurred around just 30 years after the communist revolution in Russia.
Hope I helped!
B is the answer
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<u>Answer:
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The build-up of three oxygen created our ozone layer around two billion years ago.
<u>Explanation:
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- The ozone layer is a part of the stratosphere which is located right after the troposphere in the atmosphere of the Earth.
- The ozone gas is made up of the abundance of three oxygen molecules combining with the ultraviolet radiation emitted by the Sun.
- The development of the ozone layer happened around two billion years ago when the oxygen concentration levels on the planet began to rise slowly and gradually.
