Geomagnetic Disturbances Were First Noticed on the Telephone Network

question 6

True/False

Geomagnetic disturbances were first noticed on the telephone network.

---

Definitions:

Psychoactive Drugs

Substances that affect the mind, mood, or other mental processes by altering brain chemistry.

Tolerance

The process by which one's sensitivity to a substance decreases, leading to a need for increasingly larger doses to achieve the same effect.

Gradual Development

The process of slow and incremental growth, change, or progress over a period.

Psychoactive Drug

Substances that affect the mind, mood, and other mental processes by altering brain function.