(A) space travel
(B) navigation
(C) aviation
(D) communication
Author:
Condensation occurs when:
(A) the air is cold
(B) the air is warm
(C) the air is saturated
(D) None of the above
Which of the following reflects radio waves back to the Earth?
(A) Ionosphere
(B) Thermosphere
(C) Tropopause
(D) Mesopause
Which of the following layers of the Earth’s atmosphere provide ideal flying conditions for Jet aircraft?
(A) Mesosphere
(B) Thermosphere
(C) Stratosphere
(D) Troposphere
Which of the following is not one of the by-products of mineral oil?
(A) Naphtha
(B) Sulphur
(C) Aniline dyes
(D) Paraffin wax
A large number of colleges are affiliated__the Punjab Univeristy.
(A) with
(B) by
(C) from
(D) to
The party comprises__Rana, Rehan, Shanza and myself.
(A) of
(B) with
(C) by
(D) no preposition
There is no exception__this rule.
(A) for
(B) to
(C) about
(D) in