Rocks and minerals showed evidence of <u>oxidation</u> causes by the presence of oxygen in the air. In the second example, <u>organisms</u> actually created new rock after being dissolved in water or buried underground.
<h3>What is oxidation and fossilization?</h3>
Oxidation is the chemical reaction which usually takes place when a substance comes into contact with oxygen or another oxidizing substance.
Fossilization refers to the process of preserving the plant and animals remains in sedimentary rocks.
Oxidation also includes the other reactions as well in which electrons are lost.
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Answer:
Eritrea has faced several challenges since gaining independence from Ethiopia in 1993. The country has only one political party that maintains all of the control. Democratic national elections have yet to be held; the transitional government is still in power, and no constitution has been implemented. Furthermore, territorial disputes with Ethiopia continue. Eritrea's command economy is struggling. Over 80% of the population is engaged in subsistence agriculture. Climate changes have created problems for agriculture, and drought is a major issue. Finally, property damages due to war have proven costly.
Explanation:
That is the correct sample response.
Farming is a common economic activity around two important rivers in South Asia, the INDUS and the GANGES
Explanation:
Ganges and Indus are two of the major rivers flowing in South Asia. They came into existence a long time ago. These rivers along with the Brahmaputra are known to be the backbone of South Asia in terms of culture and economy. The three rivers have contributed to the rise of the earliest civilizations in history.
Farming is the major economic activity in which these rivers have contributed and still contributing to the present as the soil present around them is very fertile and is ideal for various crops such as Wheat, Rice,Cotton,Sugarcane and Maize. The fertility of the soil is replenished when the rivers are flooded making it ready for next cultivation.
He Spanish conquest of the Inca Empire<span> was one of the most important campaigns in the </span>Spanish colonization of the Americas<span>. After years of preliminary exploration and military skirmishes, 180 Spanish soldiers under conquistador </span>Francisco Pizarro<span>, his brothers, and their </span>native allies<span> captured the </span>Sapa Inca Atahualpa<span> in the 1532 </span>Battle of Cajamarca<span>. It was the first step in a long campaign that took decades of fighting but ended in Spanish victory in 1572 and colonization of the region as the </span>Viceroyalty of Peru<span>. The conquest of the Inca Empire led to spin-off campaigns into present-day Chile and Colombia, as well as expeditions towards the Amazon Basin.</span>
Answer: What nation announced on monday that it would leave opec and focus more on its production of natural gas?
QATAR.
Explanation: Qatar which is a small and wealthy country, was a member of OPEC. Qatar is the world largest exporter of liquefied natural gas, says they are not leaving the business but they are joining an organization of a particular country (the name was not disclosed) to focus on the production of natural gas.