Too much money is wasted on repairing old buildings that should be used to knock them down and build new ones. To what extent do you agree or disagree? Give reasons for your answer and include any relevant examples from your own knowledge or experience. Write at least 250 words. Task 2 ...
A In the past, urban home owners have not always had much choice in the way electricity is supplied to their homes. Now, however, there is a choice, and a rapidly increasing number of households worldwide are choosing the solar energy option. Solar energy, the conversion of sunlight into ...
is still enough for us. But our need for water is increasing rapidly-- almost day by day. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. A limited water supply would have a bad effect on agriculture...
Solar energy is becoming an increasingly popularrenewable energysource for homes and businesses worldwide. However, to get the most out of solar power, it’s important to maximize the efficiency of your solar panels. This means taking steps to ensure that your panels are operating at their highe...
In 2021, worldwide sales of bottled water totaled 350 billion liters (92.5 billion gallons). There's a lot of plastic left over once 400 billion liters (105.6 billion gallons) of water is consumed. In a single year, manufacturers around the world create around 600 billion plastic bottles...
That is the very likely future of applying today's "eyes in the sky" technology to making sure that the millions of kilometres of rail tracks and infrastructure(基础设施)worldwide are safe for trains on a 24/7 basis. Drones are already being used to examine high-tension electrical lines. ...
The current objectives are to continue reducing additional construction costs for Passive House buildings and further adapt the concept worldwide. Since 2015, a special recognition is given to projects generating renewable energy and having an even higher overall energy efficiency than a traditionnal ...
Clearly scientists and manufacturers have a lot of work to do before fuel cells become a practical alternative to current energy production methods. Still, with worldwide support and cooperation, the goal to have a viable fuel cell-based energy system may be a reality in a couple of decades....
This is because the manufacturing process for a polycrystalline cell is simpler and requires fewer specialized processes. Thin-film solar cells Thin-film solar cells are much slimmer, lighter-weight solar cells that are often flexible while remaining durable. There are four common materials used to ...
1/ Coal plants are not like computer chips.You’ll sometimes hear Moore’s Law invoked as a reason to think we can make the same kind of exponential progress on energy. If computer chips can improve so much so quickly, can’t cars and solar panels? Unfortunately, no. Computer chips are...