Making sure there's minimal litter and pollution around our daily lives? :)
The _electroencephalogram (EEG)_ is a device that takes advantage of the changing magnetic fields produced by the electrical activity of the brain to produce a record of neural activity in the awake brain.
The earliest archaeological evidence of humans in Australia is from Lake Mungo , dating to 40,000 years ago.
I think C, correct me if I’m wrong.
