Question

one evening in shilma,the temperature was -1 degree Celsius.At midnight it became 4 degree Celsius colder.what was the temperature at midnight​

Answer 1

Answer:

Hydroelectricity, or hydroelectric power, is electricity produced from hydropower. In 2015, hydropower generated 16.6% of the world's total electricity and 70% of all renewable electricity, and was expected to increase by about 3.1% each year for the next 25 years.