Question

por favor no la entiendo ​

Answer 1

-they can put electricity for appliances and lights bulbs

-you must know hot to reduce the energy expenditure in heating system

-in the bathrooms we can use solar panels in the lights, there are so much options

-you should implement an organic rubbish treatment that benefit the environment

-and must implement another one to discard unnecessary garbage, which should be minimal

espero que te sirva