A.gold because most of it is imported from Africa ( the same to diamond)
Answer:
False
Explanation:
The Rio Grande rift is one of the major continental rifts in the world where the continental crust is being heated and stretched from below
For the first question, it is cos48=2/3
The Dust Bowl was the name given to the drought-stricken Southern Plains region of the United States, which suffered severe dust storms during a dry period in the 1930s. As high winds and choking dust swept the region from Texas to Nebraska, people and livestock were killed and crops failed across the entire region.
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Environmentalists are especially concerned about the amount of carbon dioxide released from burning coal because it is a significant greenhouse gas.
A greenhouse gas (GHG or GhG) is a gas that produces the greenhouse effect by absorbing and emitting heat infrared radiation. Water vapor (H2O), carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), and ozone are the planet's main greenhouse gases (O3).
Without greenhouse gases, the average surface temperature of the Earth would be closer to 18 °C (0 °F) than it is today, which is 15 °C (59 °F). Additionally, greenhouse gases are found in the atmospheres of Venus, Mars, and Titan.
Since the start of the Industrial Revolution (about 1750), human activities have increased atmospheric carbon dioxide content by over 50%, from 280 ppm in 1750 to 419 ppm in 2021.
Learn more about greenhouse gas here:
brainly.com/question/4509458
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