तड़ित झंझा (तूफान) के दौरान खुद को सुरक्षित रखने के लिए निम्नलिखित में से किस गतिविधि से बचना चाहिए?

How do tornadoes typically extend and touch the ground?

The place inside the earth's crust where an earthquake originates is called the:

A seismograph is an instrument used to detect and record the vibrations of earthquakes. Which of the following is a primary internal component of a basic mechanical seismograph?