“Scientific models are often used in laboratories to represent Earth's processes. While field tests and observations are vital, physical, digital, and mathematical models are useful tools in the laboratory. Models provide insight into complex processes that might otherwise be difficult to grasp”
A strong dependence on a drug or substance is known as an addiction.
Answer:
bueno no se como ayudarte soy un niño deverias ablar con un doctor deve ser que te dise un golpe en la cabeza oh algo asi
Explanation:
Electrical and chemical signals
