Oil. Persian Gulf countries produce about 25% of the world oil and nearly two-thirds of the world's crude oil reserves.
The answer is “Igneous Rock” :}
There are several ice ages that has taken place here on earth. Recent studies of ice ages have interpreted glacial events by analyzing the oxygen isotope ratio in marine sediments.
- The Ice Age is a very popular timeframe in history. It is known to be a long time of decreasing in the temperature of Earth's surface and atmosphere.
This can also lead to the presence or expansion of continental and polar ice sheets and alpine glaciers.
The Earth's climate is said to often alternates inbetween ice ages and greenhouse periods. In this period, there will be no glaciers on the planet.
Scientists have recorded at least five important ice ages in the Earth's history.
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Limited governments are constitutional, giving the citizens their rights and freedoms, but unlimited have no trial. Everyone , including the leaders and authorities, must always obey the laws they have enforced in democracies, while a leader or group has total control over locations with unlimited governments.
Limited - England, Australia, Canada
Unlimited - North Korea, Cuba, Syria
