Statements:

1. The Government has reduced the prices of petroleum products by five percent a week after increasing the prices by ten percent.
2. The rate of inflation dropped marginally during the last week.

Since in the recent time, many shopping malls have been opened all over the city, therefore, majority of the people residing in the locality have decided to protest against the municipality authority's decision to allow construction of a shopping mall in the locality.

Since the teachers of the colleges complained to the university about the disturbances caused by cell phone ring-tones inside the class-rooms, the university authority has instructed all the colleges under its jurisdiction to ban use of cell phones inside the college premises.

Both statements I and II are the effects of independent causes.

Both the statements are effects of some common cause.

Since police authority has recently increased vigil during the evening hours in the locality therefore, the petty crimes have reduced considerably.

Since the parents of aspiring students seeking admission to professional courses had launched a severe agitation protesting against the high fess changed by the professional institutes.

So, the committee was appointed by the Government on the fee structure of professional courses has drastically reduced the fess of previous course.

Bus and Train are different from each other but some travelers travel by bus and some travel by train.

Bonus and Dividend are different from each other. But both these are parts of profit.

All mothers are women and some mothers and some women may be engineers.