Final answer:
Life without electromagnetic waves would be significantly altered. Electromagnetic waves are crucial for our vision, communication, and the sustenance of life on Earth.
Step-by-step explanation:
Without electromagnetic waves, life as we know it would be drastically different. Electromagnetic waves play a crucial role in various aspects of our daily lives. For example, they are responsible for our ability to see objects through visible light waves, and they enable communication through radio waves and cell phone signals. Additionally, electromagnetic waves provide us with energy from the Sun, which is vital for sustaining life on Earth.