Q: What amazing machines smash particles that are smaller than atoms into each other head-on?


Read this paragraph and choose the correct option from the provided answers:

Scientists have built machines called particle accelerators. These amazing tools smash particles that are smaller than atoms into each other head-on. This creates new particles. Scientists use particle accelerators to learn about nuclear fusion in stars. They can also learn about how atoms came together in the early universe. Two well-known accelerators are SLAC, in California, and CERN, in Switzerland.

 Choices:

- nitrogen accelerators

- observant accelerators

- absorption accelerators

- particle accelerators


A:
particle accelerators