Final answer:
Vaccines, renewable energy, and the internet are examples of technologies developed for social betterment.
Step-by-step explanation:
Three examples of technologies developed for social betterment are:
- Vaccines: Vaccines have been instrumental in preventing and eradicating diseases, significantly improving public health and well-being. For example, the development of vaccines for polio, measles, and smallpox has saved millions of lives and reduced suffering.
- Renewable Energy: The advancement of renewable energy technologies such as solar, wind, and hydro power has led to a cleaner and more sustainable environment while reducing dependence on fossil fuels and mitigating climate change.
- Internet: The widespread adoption of the internet has opened up opportunities for education, communication, and information access, contributing to social empowerment and bridging the digital divide.