Questions

Since, the sentence starts talking about the reason; R will be the continuing statement as it goes with the flow of the statement. The continuing statement talks about the existing of life i.e. P. Thus, all other options are eliminated. The correct formation would be, ‘There is no reason why we should not be willing to think that life may exist in great profusion in other worlds.’

Fossil fuels energy source generates the least greenhouse gases. Of them, i.e, oil, natural gas and coal, natural gas source generates the least greenhouse gases.

SO2 has a net dipole moment and has a bent shape in its structure as water molecule. Hence it is a polar molecule.

A Watermelon is the one which have upper layer in green, the second layer with white and the inner layer in red colour which have seeds in it.

Both options (A & B), summarizes a result of the protestant reformation.

The Protestant Reformation was a major 16th century European movement aimed initially at reforming the beliefs and practices of the Roman Catholic Church.