Ivan Pavlov was the first person to describe learning as acquired through classical conditioning while studying the digestive process of dogs. Ivan Pavlov<span> and his theory of classical conditioning had a profound impact on the understanding of human behavior. Hope this answers the question. Have a nice day.</span>
1. Long periods of drought and desertification
2. I believe is South Africa.
They were diverse. all the Quakers. All the Catholics. All the Jews.
<span>According to the national institutes of health, 65 percent of adult americans were overweight or obese in 2005, and 16 percent of american children were overweight.
The expert suspect that this number is caused by both the development of modern technologies that make the people tend to stay indoor with their gadgets rather than doing physical activities and the increase of junk food manufacturers.</span>
Answer:
Conservation of mechanical energy
Explanation:
Law of Conservation of Mechanical Energy: The total amount of mechanical energy, in a closed system in the absence of dissipative forces (e.g. friction, air resistance), remains constant.
In the absence of air resistance, the mechanical energy of an object moving through the air in the Earth's gravitational field, remains constant (is conserved) while the opposite is the case when there is air resistance involved.