Any practices should best be based on a research - this is the correct answer. (a. child development and research) Research is the best source of actual knowledge, rather than people's best guesses (people's best guesses might lead government regulations, but it would be better if they also followed research results.).
Yes i do drink soft drinks. What are the tests?
An economic indicator is a type of statistic data about the economic activity of a country, it enables analysis about the current situation and performance of the economy. Moreover, it also allows predictions of future performance. One economic indicator used to tell how an economy is doing is the CPI, Consumer Price Index, it takes a sample of many goods and services over two hundred unit category. The information is gathered through phone calls and personal visits.
President Richard Nixon proposed the development of the Environmental Protection Agency
Answer: it’s A.true
Explanation: Trophic cascade, an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal changes in the relative populations of predator and prey through a food chain, which often results in dramatic changes in ecosystem structure and nutrient cycling.
