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.’

3 May

The each degree of latitude is equals to 111 kms approx (69 miles). As Earth is lightly ellipsoid in shape it changes at equator and poles from 110.5 kms to 111.7 kms respectively.

In the above given options, Retrovirus is the only virus which is not associated with cancer. Here the viruses which are associated with different types of cancer. They are:

Hepatitis virus which is associated with Liver cancer

Papillomavirus which is associated with Cervical cancer

Epstein-Barr virus which is associated with Burkitt's lymphoma.

In the aggregate expenditures model, it is assumed that investment does not change when real GDP changes.

• The aggregate expenditure is the sum of all the expenditures undertaken in the economy by the factors during a specific time period.

• The aggregate expenditure determines the total amount that firms and households plan to spend on goods and services at each level of income.

It has been said that the creation of NASA was due to the space exploration race between the US and the Soviet Union. One of the drives to the creation of NASA is the launching of Sputnik on October 4, 1957.

Since then, further explorations have been made by the agency.

Photosynthesis takes place inside plant cells in small things called chloroplasts.

Chloroplasts contain a green substance called chlorophyll and this absorbs the light energy needed to make photosynthesis happen.