SCIENCE
ECOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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habitat loss
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exotic species introduction
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pollution
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all of the above
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Detailed explanation-1: -Species endangerment and extinction have three major anthropogenic causes-overhunting or overharvesting; introduction of nonnative species, including the spread of disease; and habitat degradation or loss. All three causes probably were factors in prehistoric as well as modern times.
Detailed explanation-2: -The seven natural causes are volcanic eruptions (flood basalt events), methane eruptions, asteroid and other extraterrestrial collisions, sea level falls, anoxic events, global warming, and global cooling. Over 90 percent of all organisms that have lived on Earth at any time are now extinct.
Detailed explanation-3: -Habitat loss due to deforestation, agricultural practices and urbanization is the leading cause of extinction across the world. The other options are also causes but the major cause of extinction is habitat loss.
Detailed explanation-4: -Demographic and genetic phenomena. Destruction of wild habitats. Introduction of invasive species. Climate change. Hunting and illegal trafficking.
Detailed explanation-5: -Asteroid Strikes. A meteor strike on the Yucatan peninsula in Mexico led to the disappearance of dinosaurs millions of years ago. Climate Change. Disease. Loss of habitat. Lack of Genetic Diversity. Better Adapted Competition. Pollution.