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Answer:
The Amazon rainforest in Brazil lost an area about 12 times the size of New York City from August 2018 through July of this year, according to government data released Monday, which shows that deforestation in the biome has shot up significantly since the election of President Jair Bolsonaro.
The 3,769 square miles of forest cover lost during that period represents a 30 percent increase from the previous year and the highest net loss since 2008.
While there are always multiple direct and indirect drivers of deforestation, the largest contributors in Brazil, by far, are cattle ranching, demand for commodities, and logging (Butler, 2019). Cattle ranching is, as it sounds, the issue of large areas of forest being destroyed for cattle farms. This relates to the demand for commodities, as Brazil is the largest exporter of beef in the world (Yale University, 2015). The other largest commodity in the Brazilian Amazon is soybeans. In fact, Brazil is the largest exporter of soybeans in the world (Simoes et al., 2011). Soybeans require large plots of land in order to be farmed, and this land is obtained largely through deforestation. Lastly, logging, the process of obtaining wood for timber and other uses, is a very large contributor to deforestation.
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Humans and most other mammals have two sex chromosomes, the X and the Y. Females have two X chromosomes in their cells, while males have both X and a Y chromosomes in their cells. Egg cells all contain an X chromosome, while sperm cells contain an X or Y chromosome.
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Answer: Scientists know that the Colorado River carved Grand Canyon. ... The age of the river falls between the rocks determined to be older than the river and those determined to be younger. Through this method, scientists have estimated an age for the river, and thus the canyon through which it flows, of 5-6 million years.
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