Answer: Stratified random sampling
Explanation:
In stratified random sampling the population of choice is partitioned into subgroups. Then the samples for study are selected randomly from the subgroups.
The given situation is the example of stratified random sampling this is because of the fact that the population is divided into subgroups on the basis of the social class and age. Then the voters were randomly selected from each subgroup.
Economic growth and new wealth changed business in Europe because more people had wealth, they started buying more manufactured goods <span>
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Answer:
1. chemical industry is the industry that includes companies or machines to produce chemicals.
2. the industry that works on producing various types of cements is cement industry
3. the industry that produces substances which supplies the required chemicals for plant growth is fertilizing industry.
