The correct answer is: An asteroid impact.
The scientists call it the extraterrestrial impact theory. It states that a giant, six mile wide meteor hit the Earth around 66 million years ago. As a consecuence, clouds of iridium dust and other materials were thrown into the air, blocking the sunlight for years. This lead to the extintion of the dinosaurs who were not able to feed themselves as plants didn't grow. Photosynthesis was not possible and food chains could not be completed. When the dust settled the greenhouse gases were locked in the atmosphere causing a general increase of temperature.
Answer:
Explanation:
The Texas oil and gas regulator, the Texas Railroad Commission, imposed production limits on producers in the 1930s to try to prop up prices and later was a model for the creation of OPEC. ... Small oil producers would be exempt, Gallagher said.
<span>Good Morning!
In her 1920s text, Olive Schreiner, a socialist and feminist from South Africa, pointed out that the country's main problem lay in the absence of unity. This was, she said, the main point of convergence that should be pursued by all South Africans: to achieve national unity, regardless of nationality and ethnicity.
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Answer:
States' Rights refers To the struggle between the federal government and individual states over political power. In the Civil War era, this struggle focused heavily on the institution of slavery and whether the federal government had the right to regulate or even abolish slavery within an individual state.
Explanation:
The Civil War is believed by most to be caused because of the issue of slavery. ... States' rights were simply a convenient political debate to fit the slavery argument into. The American Civil War was, ultimately, about one thing: slavery. However, other issues found their way into the debate as well.
