Exercices de Anglais : Environment & sustainability

Fill in the blanks to describe eco-friendly habits using the correct form of the verbs in brackets and the adverb of frequency.

1. Sarah (to recycle) $90\%$ of her waste. (always)
2. We (to turn off) the lights to save $100\%$ of energy when we leave a room. (often)
3. My brother (to walk) to school instead of taking the car, saving $2$ kg of $CO_2$ per trip. (sometimes)

Sophie wants to reduce her carbon footprint. She replaces $5$ traditional light bulbs of $60$ $W$ each with $5$ LED bulbs of $8$ $W$ each. They are used for $4$ hours per day. Calculate the total daily energy savings in $Wh$ (Watt-hours).

A school cafeteria currently consumes $500$ plastic bottles per day, which take $450$ years to decompose. The school wants to switch to reusable glass bottles to reduce waste. - Option A: Continue using plastic bottles at a cost of 0.20 € per unit. - Option B: Purchase $500$ glass bottles once at 3 € per bottle. Each glass bottle lasts for the entire school year of $200$ days. Calculate the total cost of Option A and Option B for one school year ($200$ days) and write a short paragraph explaining why Option B is better for the environment, citing the duration of decomposition ($450$ years) compared to the durability of glass.