If i had to answer this question i would go with letter b for a answer
Answer:
because that was there only safe places
Explanation:
Answer: c. No, all cells need molecule from food and molecules from air to work properly
Explanation:
Based on the scenario that's explained in the question, the athlete is wrong as every cells need molecule from food and molecules from air to work properly.
The molecules from the food we eat and the molecules from the air which is the oxygen we breath are essential for the proper functioning of the body system. The energy that is contained in the food that we eat is broken down and used by the cells in the body.
Generally speaking, industrialization greatly reduced social inequality by creating a "middle class" of people, who were able to significantly increase their incomes due to the large number of jobs available in factories.
Easier travel and trade.. with others outside