30 degrees Celsius is 86 degrees Fahrenheit.
Being a barb purrrrrrrrrrrrr...
Answer:
d) All of these were not true
Explanation:
All the options above were all questioned by the Brelands. Instinctive drift as coined by Keller and Marian Breland who were former students of B. F skinner, asserted that operant conditioning theory wasn't true after their work on instinctive drift. Instinctive drift, a direct opposition to the operation conditioning theory of Skinner since an animal could still revert to unconscious behaviour after learning under operant conditioning.
HDI measures human development, while GDP measures economic development.<span>hope this helps!</span>