Because of the plates crashing into each other
Sorry no se inglés
Bdnnfncnfnfnfn
The Jaeger reading cards are used to test near vision. It's usually held by a patient at a certain distance from the eye depending on the size being read. The smallest letters one can read is what determines their visual acuity!
Answer:Bunser buner
Explanation: It is meant to heat solid and liquid substance in the lab.