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Mindful Eating: A Pathway to Health - Food Miles: From Farm to Our Plate

Grade 6CBSE

Review the key concepts, formulae, and examples before starting your quiz.

🔑Concepts

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Food Miles: It is the total distance food travels from the place it is produced (the farm) to the place where it is consumed (our plate). It is measured in kilometers (kmkm) or miles.

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Carbon Footprint: Transporting food requires fuel (petrol, diesel, or aviation fuel). Burning these fuels releases greenhouse gases like Carbon Dioxide (CO2CO_2). The total CO2CO_2 emissions associated with food transport contribute to its carbon footprint.

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The Food Supply Chain: This includes the stages of production, processing, packaging, transport, and distribution. Each stage adds to the total energy consumed.

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Local vs. Imported Food: Local food has lower food miles and is generally fresher. For example, a local tomato may travel 20 km20\text{ km}, while an imported one may travel over 2,000 km2,000\text{ km}.

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Mindful Eating: This involves being aware of the origin of our food, choosing seasonal produce, and supporting local farmers to reduce environmental impact and improve health through fresher nutrients.

📐Formulae

Total Food Miles=∑d=d1+d2+d3+⋯+dn\text{Total Food Miles} = \sum d = d_1 + d_2 + d_3 + \dots + d_n

Carbon Emissions(E)=d×f\text{Carbon Emissions} (E) = d \times f

Reduction in Miles=Mimported−Mlocal\text{Reduction in Miles} = M_{imported} - M_{local}

💡Examples

Problem 1:

A bag of rice is transported 450 km450\text{ km} from a farm to a processing unit, and then 125 km125\text{ km} from the unit to a retail store. Calculate the total food miles.

Solution:

450 km+125 km=575 km450\text{ km} + 125\text{ km} = 575\text{ km}

Explanation:

To find the total food miles, we add the distance covered in all segments of the journey from the farm to the point of sale.

Problem 2:

Calculate the difference in food miles if a family switches from imported grapes (traveling 8,500 km8,500\text{ km}) to local grapes (traveling 150 km150\text{ km}).

Solution:

8500−1508350\begin{array}{r} 8500 \\ - 150 \\ \hline 8350 \end{array} The difference is 8,350 km8,350\text{ km}.

Explanation:

By choosing local produce, the family reduces the transport distance by 8,350 km8,350\text{ km}, significantly lowering the carbon footprint.

Problem 3:

If a truck emits 0.2 kg0.2\text{ kg} of CO2CO_2 per kilometer, how much CO2CO_2 is produced if a vegetable crate travels 500 km500\text{ km}?

Solution:

500×0.2=100 kg of CO2500 \times 0.2 = 100\text{ kg of } CO_2

Explanation:

We multiply the total distance (d=500d = 500) by the emission factor (f=0.2f = 0.2) to find the total greenhouse gas impact.