Microorganisms such as bacteria can be removed by disinfection. Certauns substances called biocides are addes to water to make it pure. Purification can also be done by UV-light .
Answer:
D. Washing your hands before eating.
Explanation:
Option a, b and c are examples of not practicing proper hygiene and they increase the chances of you getting diseases. Option D is the only example that practices proper hygiene.
Answer:
Well... My dad walked into a glass window true story and he lost his hearing and his nose hurt for like 3 weeks his hearing is getting better
Answer: true
Explanation: it can only be converted from one form of energy to another