Answer: Concepts
Explanation:
It is a mental grouping of similar things, events, and people that is used to remember and understand what things are, what they mean, and what categories or groups they belong to. For example, if I say to you, "think of a car," the concept, "car" will evoke some ideas in your head about what a car is and what types of characteristics it contains
High use of fertilizers and pesticides leading to degradation in the fertility of the level of the soil.
<u>Explanation:</u>
Green revolution was started with the aim of increasing the level of production of the farm and to bring in new and innovative ways and methods to increase the productivity.
This helped the farmers to increase their yield and there fore their income for their survival. But with these positive effects, it also had some negative effects like there was excessive use of pesticides and fertilizers due to which the level of fertility of the soil degraded and fell down.
Answer:
B) The Case Study
Explanation:
The case study is a research method that generally uses qualitative data, collected from real events, to explain, explore or describe current phenomena inserted in their context. It is usually a way of deepening an individual unit. It serves to answer questions that the researcher does not have much control over the phenomenon studied. That's why it so risks because the researcher doesn't have control over the studied object.
