Final answer:
Ringworm is a fungal infection caused by Trichophyton fungi, not a worm, and it presents as a ring-shaped rash on the skin. It can be spread through close contact with infected individuals or shared surfaces.
Step-by-step explanation:
The assertion that ringworm is caused by a worm that is picked up from infected ground is false. In fact, ringworm is a common skin infection caused by fungi, specifically a group called Trichophyton. It produces a distinctive ring-shaped rash on the skin, which may be gray or brown on brown or black skin, and red on lighter skin. Ringworm can affect various parts of the body such as the arms, legs, head, neck, or trunk and is similar to the fungus that causes athlete's foot. It is quite contagious and can be transferred between people through close contact, or from contact with objects in communal spaces such as locker rooms and public pools.