ECOLOGY
HUMANS AND THE BIOSPHERE
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Carbon emissions are reduced when using airplanes.
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Exotic species are introduced to new areas where they compete with native species.
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Diseases are isolated to certain areas of the globe.
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Fewer habitats are exploited due to improved tourism.
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Detailed explanation-1: -With the development of air flight and mass transit, humans are able to move very rapidly around the world. Which of the following is a possible consequence of increased human travel? Exotic species are introduced to new areas where they compete with native species. Carbon emissions are reduced when using airplanes.
Detailed explanation-2: -The main direct cause of biodiversity loss is land use change (primarily for large-scale food production) which drives an estimated 30% of biodiversity decline globally. Second is overexploitation (overfishing, overhunting and overharvesting) for things like food, medicines and timber which drives around 20%.
Detailed explanation-3: -Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.
Detailed explanation-4: -The current extinction crisis is entirely of our own making. More than a century of habitat destruction, pollution, the spread of invasive species, overharvest from the wild, climate change, population growth and other human activities have pushed nature to the brink.
Detailed explanation-5: -Leave critical wildlife habitat undisturbed, especially nesting and denning sites. Promote wildlife use by setting up bird and bat houses. Eradicate and control introduced weeds on your property. Keep vehicles on main roads to reduce the spread of weeds and disturbance to wildlife.