To test this hypothesis I would select an even number of children (20 children, for example) and divide them into two groups. Each group would undergo a series of medical examinations to assess everyone's health (it is important that all children have a healthy body). Then each group would receive a "mission", the mission of group A would be to go to school only by bus for 6 months, the mission of group B would be to go to school just walking for their months. After this period of time, the children would be submitted to the same exams so that we could assess changes in the health of each one of them.
One of the most important principles of scientific research refers to the establishment of an experiment so that it is possible to collect data that can confirm or cancel a hypothesis. As we can see in the example above, this principle was applied, since a 6-month experiment was established, which will provide data, so that it is possible to confirm or deny the hypothesis that children who walk to school are healthier than those who go to school by bus.
The correct answer is B. Nigeria and Mali only
Explanation:
The chart presented shows the religions practiced in different countries in Africa and the percentage of the population in each country that practices each religion. In this context, a higher percentage shows more people in a specific country practices a religion; also, 50% or more shows at least half of the population practices a religion.
In this context, the countries in which at least half of the population practice Islam are Nigeria and Mali because in Nigeria the percentage for this religion is 50%, which is exactly half of the population, and in Mali, the percentage is 90% which is almost all the population. Moreover, in Saudi Arabia and Zimbabwe, the percentage for this religion is 1%.
The answer would be : The house of representatives
The branch of Government that is responsible for drawing up articles of impeachment against an American president is the house of Representatives. The United States Constitution allows the member of of the representatives to expel a government official with 2/3 of the votes.