EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Human food sources will be impacted by climate change even though much is grown on farms
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Changes in arctic sea ice is leading to less ice algae-an important base of the arctic food chain
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Organisms at the top of the food chain (humans, hawks, etc) will be at the least risk when food chains are disrupted
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None of the above
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Detailed explanation-1: -At the top of the scale are meat-eaters that don’t have any predators themselves, such as polar bears and orca whales. Instead, we sit somewhere between pigs and anchovies, scientists reported recently. That puts us right in the middle of the chain, with polar bears and orca whales occupying the highest position.
Detailed explanation-2: -All food chains start with energy from the sun. This energy is captured by plants. Thus the living part of a food chain always starts with plant life and ends with an animal.
Detailed explanation-3: -Humans are said to be at the top of the food chain because they eat plants and animals of all kinds but are not eaten consistently by any animals. The human food chain starts with plants. Plants eaten by humans are called fruits and vegetables, and when they eat these plants, humans are primary consumers.
Detailed explanation-4: -Grass → Grasshopper → Frog → Hawk. Grass → Grasshopper → Rat → Fox. Grass → Rabbit → Fox. Grass → Rat → Snake →Hawk. Grass → Rat → Hawk.