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YDT • İngilizce 3. ADIM • 3. DENEME

62. Vitamins are small organic nutrients that are 63. ---- Combating climate change will require reduced
needed by our bodies but only in tiny amounts. use of fossil fuels, better energy efficiency, and
They have two characteristics that distinguish more reliance on renewable energy sources such
them from the other groups of nutrients: unlike as cellulose-based ethanol and solar power.
proteins, vitamins are not used to construct the Innovative carbon capture methods have been
physical building blocks of the body. And different developed, and more are under development
from carbohydrates and fats, vitamins do not to lower atmospheric carbon dioxide levels. In
provide energy. ---- For example, some vitamins one such strategy, algae turn carbon dioxide
bond to enzymes, allowing them to accelerate from factories and power plants into oil, which
chemical reactions within the cell, while others act is converted to biodiesel. Waste management
as delivery services, supplying chemical groups improvements, such as reducing the release
required in important metabolic reactions. of greenhouse gases by landfills, will also be
required.
A) Instead, they take part in a wide range of vital
metabolic processes. A) Climate change could affect the distribution of
B) For optimal functioning, vitamin and mineral intake forests, grasslands, deserts, and other biomes if
should be neither too low nor too high. average global temperatures rise by 4°C.
C) The amount of supplements that a person needs B) The current trend of rising global temperatures is
depends on their diet. expected to continue since there is no end to the
rise in carbon dioxide levels.
D) The human body cannot make these essential
vitamins, so it must get what it needs from food. C) Efforts to curb climate change will have social and
economic costs, yet any delay will probably result
E) In addition, they are classified as either fat-soluble
in considerably higher costs in the future.
or water-soluble.
D) Though climate change is already underway,
researchers believe that the worst-case scenarios
can be avoided by taking prompt action with
current technologies.
E) Since the mid-twentieth century, the rise in global
temperatures is owing to human-caused increases
in the concentration of greenhouse gases.

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