Answer:
Negative influence: Snacking before dinner
Explaination: Snacking before dinner causes our stomach to be full in a not very stable way because snacking is only meant as an appetizer before our eyes. But what we must retain in mind is that, this habit may cause to neglect our main meal that is taken importantly such as breakfast, dinner and lunch . For example, if you're eating a packet of chips before dinner, you might soon feel full and leave out your plate of food for dinner. After doing so, you will go to sleep and then start feeling hungry resulting in gas. So that is not a very proper way of eating.
Answer:
The correct answer is herd immunity.
Explanation:
Herd immunity is the resistance against a contagious disease provided by the immune individuals which makes the major part of the population to few susceptible individuals in the community.
So as most of the population is immune to the disease therefore that disease is not able to overpass these immune individuals and the susceptible person is protected indirectly from that contagious disease. By vaccinating most of the people against a disease we can gain herd immunity. So the right answer is herd immunity.