The chart below shows the percentage of five North American lakes covered in ice during two 20-year periods.
Summarise the imformation by selecting and reporting the main features, and make comparisons where relevant.
Some people believe that it is good to share as much information as possible in scientific research, business and the academic world. Others belive that some imformation is too important or too valuable to be shared freely. Discuss both sides and give your own opinion.
The charts below present ifornation about electricity generated using renewable and non-renewable energy in the united states in 2009 and 2019.
summarise the imformation by selecting and reporting the main features, and make comparisons where relevent.