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What rock is formed when shale and mudstone are heated?
Developing Countries
Nations with a lower living standard, undeveloped industrial base, and low Human Development Index relative to other countries.
Q6: While climate change is a serious threat
Q16: In cities, urban _ worsen pollution because
Q21: Denmark has banned all _ that cannot
Q50: Focusing on establishing and maintaining new habitats
Q78: In the United States, _ supply nearly
Q79: Important nonrenewable mineral resources are evenly distributed
Q82: Which type of fires usually burn only
Q84: Burning coal contributes to air pollution, ocean
Q84: National parks are areas that are protected.
Q95: One problem that threatens aquatic biodiversity is