Answer:
I believe the answer is A.
Explanation:
NAFTA stands for North American Free Trade Agreement. It eliminated all tariff & non-tariff barriers between the US, Mexico, and Canada.
Answer:
298 million, give or take
<span>the gateway of a Shinto shrine, with two uprights and two crosspieces.</span>
When scientists discuss the great oxygenation event, they are referring to a time when the transition from the mildly reducing Archean atmosphere-ocean system to the oxygenated atmosphere and shallow oceans of the early Paleoproterozoic that started between ~2.4 and 2.3 Ga and ended between 2.1 and 2.0 Ga.
- here The Great Oxidation Event, also called the Great Oxygenation Event, the Oxygen Catastrophe, the Oxygen Revolution, and the Oxygen Crisis, was a time interval when the Earth's atmosphere and the shallow ocean first experienced a rise in the amount of oxygen.
- in this event Gradually, the accumulated oxygen started escaping into the atmosphere, where it reacted with methane. As more oxygen escaped, methane was eventually displaced, and oxygen became a major component of the atmosphere.
- The Great Oxygenation Event (GOE) was the creation of free oxygen in our atmosphere. It was caused by cyanobacteria doing photosynthesis
to know more about photosynthesis click here
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In Europe, many natural resources have been conserved because they have been overused. The correct option among all the options that are given in the question is the last option or option "D". I hope that this is the answer you were looking for and it has come to your help.