Answer:
A
Explanation:
Pollution is and can be poisonous to some environment and to organism. It also harms the thing in that environment.
The correct answer is B. According to the American Cancer Society, tobacco poses the greatest risk for developing cancers. It was estimated that there is a 22% deaths per year due to cancer caused by tobacco use. During 2004, about 1.6 million deaths were recorded due to cancer.
Answer:
Cross Sectional , Stratified Study
Explanation:
Research needed to gather primary data to compare attitudes towards energy brand between different ethnic groups : is Cross Sectional, Stratified Study .
Cross Sectional research is about studying various sample units at a particular point of time. Eg : Studying various ethnic groups at a point of time.
Stratified Study is based on sample drawn from various strata i.e sub population groups. It is a better representative sampling form, as encompasses all component groups of sample. Eg : Studying various subgroups (ethic groups) at a point of time.
