<span>Ivan pavlov's experiments on the timing of associations demonstrated that two things become associated because one idea changes the value of another idea. They have common features,also occurring at the same time.</span>
Answer:
Natural resources, economic growth, and sustainable development. ... Natural resources have a double-edge effect on economic growth, in that the intensity of its use raises output, but increases its depletion rate.
Explanation:
In Puerto Rico 16 is when you are able to get your drivers license and at 18 you are able to vote.
The death of infants are referred to as infant mortality ( So you can say for example "Infant mortality is a big problem for some countries) and the number of such deaths per 1000 births is called the infant mortality rate.
The infant mortality rate is very high for example in Africa and in India