The statement under consideration is: "Drastic increase in pollution is now a global phenomenon." Our task is to determine which, if any, of the given assumptions are implicit in this statement. An assumption is said to be implicit if its truth is suggested by the given statement without needing any additional information.
Let's evaluate each assumption:
- Assumption 1: "All countries have realized it and are working towards control."
This assumption suggests a level of awareness and proactive measures being taken globally. However, the statement merely acknowledges that pollution is a global issue; it does not imply or suggest that all countries are actively working to control it. Therefore, assumption 1 is not necessarily implicit.
- Assumption 2: "Growing population, industries, highways and constructions are beyond control."
This assumption speaks to the factors contributing to pollution being uncontrollable. While the statement mentions a global increase in pollution, it does not specify the reasons for this increase, nor does it imply that these factors are beyond control. Consequently, assumption 2 is not implicitly supported.
Considering the analysis above, neither assumption is implicit based solely on the information provided in the statement. Thus, the correct answer is:
If neither assumption I nor II is implicit.