Rewrite the following sentences based on th given words:
Rewrite the following sentences based on th given words:
1.Scientists are trying to find cheap, clean and effective sources of energy for the future. (LOOKING)
2.Carbon dioxide has a negative impact on the environment. (NEGATIVELY)
3.Alter natuve sourcs of energy are plentiful.They are also clean and safe. (NOT ONLY)
4.Wind and solar made up 10% of the world's electricity in 2019. (ACCOUNTED)