Answer:
The type of sampling used in Jankowski's study of gangs is Option D. Stratified sampling.
Explanation:
With stratified sampling, the researcher will partition the population into different groups, usually based on some characteristic that is common to that group. In this case, it was the different kinds of gang membership. Then, the researcher will take a sample of people within each specific group using another sampling method like simple random sampling for instance. The groups that are used in stratified sampling are called strata. Another example would be a national survey that is divided into strata of the different major ethnic groups that comprise the national population.
Answer:
D). Diverse climates provided good conditions for growing a variety of crops.
Explanation:
The role that climate play in developing the ancient civilizations in East Asia would include the <u>'diversity of climates providing good and effective conditions for cultivation which eventually helped in gorwing a wide variety of plant groups</u>.' The elevation in latitudes led to the variation in air and wind blowing in different regions as well as the soil, rain, and temperature which proved to be a great source for growing distinct crops. Thus, <u>option D</u> is the correct answer.
