James Hansen, a climate change scientist, and his colleagues predict that as Car
ID: 279460 • Letter: J
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James Hansen, a climate change scientist, and his colleagues predict that as Carbon dioxide levels in the attrophere have risen from approximately 285 pm during the preindustrial age to t the arnar levels of , we need to keep CO2 levels ator below. -inorder to prevent Earth from shifting to an ice free, "hot house" world the A 400 ppm, 450 ppm C 350 ppm; 400 ppm B. 350 ppm; 450 ppm D. 450 ppm, 250 pprm Whict of the following are considered likely impacts on biodiversity due to global warming? A goverved mismatch in timing during lifecycles of insects, flowering plants, vegetation and bird migrations, reducing availability of food sources at critical stages ocean acidity stressing the formation of coral reets (bleaching), killing aquatic larvae, and destroying the foundations of multiple marine ecosystems lmsofAntic ice habitat, reducing the populations ofpolar bears due to starvation and C D extreme changes in local and regional precipitation, temperature and weather patterns, E all of the above are correct statements drowning edacing avilability of livable landscapes for many land flora and fauna (plants and animals) Whes considering the environmental and health impacts of animal agriculture upon our A Bquires massive inputs of water, petroleum based fertilizers and pesticides ruse of antibiotics driving selection for resistant strains of bacteria widi nitrates and phosphates to grow animal feed for industrial scale growth weate runoff inso soils, rivers and watersheds reorganizes marine ecosystems dits in the barbaric treatment of billions of conscious creatures ore thas one of these are correct eet Which single action can heve the greates impact on reducing the total amount of caon ssions released by an individual across their lifetime? Ae one less airline flight per year reduce the amount of meat consumption in the diet Cheve oe or more fewer childrem D swc o aomobile so public transportation use ngo the majyor drivers of extinction of wildlife on land and at sea, E.O. Wilson ues thesny iy the incres word matched with it's corresponding letter. sasve speciesExplanation / Answer
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47. James Hansen climate change scientist and his colleagues predict that as Carbon dioxide levels in the atmosphere have risen from approximately 285 ppm during the preindustrial age to their current levels of 400ppm., we need to keep CO2 levels to or below 450ppm in order to prevent the earth from shifting to an ice free, hot house; world.
Answer: Option A. [400ppm; 450 ppm]
48. Which of the following are considered likely impacts on biodiversity due to global warming?
Answer: Option E [All of the above are correct statements]
Explanation: The global warming disturbs the rain, flowering, vegetation cycle as well as also affects the migration of birds. Along with this ice of glaciers start melting which increase the ocean water level and drown many islands. Ice melting from glacier also affects the population of polar bears.
49. When considering the environmental and health impacts of animal agriculture on our changing biosphere.
Answer: Option E [More than one of these are correct]
Explanation: Because while we use these pesticides or antibiotics they generate resistant verities of bacteria and pests. These waste also reached to our water bodies any change their ecosystem too.
50. Bio Guess? Which single action can have the greatest impact on reducing the total amount of carbon emissions released by an individual across their lifetime?
Answer: Option D. [ Switch from automobile to public transportation use]
Explanation: The use of public transportation will reduce the number of automobiles from the road so less carbon emission will take place which saves our environment.
51. When refereeing to the major drivers of extinction of wildlife on land and at sea. E.O. Wilson uses the acronym HIPPO. Identify the incorrect word matched with its corresponding letter
Answer: Option A [Humans]
Explanation: The HIPPO means the threat to biodiversity from Habitat destruction, invasive species, pollution, population, overharvesting of resources.
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