_________ means a line on a map connecting points having the same atmospheric pressure at a given time or on average over a given period.

Related Mcqs:

1. Isobars are the lines connecting the places having same:___________?

   A. Pressure
   B. Rainfall
   C. Height
   D. Temperature

   Submitted by: Jameel Ahmed Solangi (Larkana)

2. Atmospheric pressure is the force (per unit-area) perpendicular to a unit-area of planetary surface, as determined by _________.

   A. Mass of vertical column of atmospheric gases
   B. Mass of horizontal column of atmospheric gases
   C. Weight of vertical column of atmospheric gases
   D. Mass of vertical and weight of horizontal of atmospheric gases

   Submitted by: Muhammad Abdullah

3. Atmospheric pressure at sea level is _______?

   A. 746 mm
   B. 760 mm
   C. 820 mm
   D. None of these

   Submitted by: Mansoor Ahmed Suhag

4. Atmospheric pressure decrease rapidly with altitude because the air becomes_______ ?

   A. Colder
   B. Less denser
   C. Rich in Ozone
   D. Warmer

   Submitted by: Mansoor Ahmed Suhag

5. The height at which atmospheric pressure declines by a factor of e (an irrational number equal to 2.71828) is called __________.

   A. Average height (H)
   B. Scale height (H)
   C. Mean height (H)
   D. Standard height (H)

   Submitted by: Muhammad Abdullah

6. The average weight of man’s brain is 4.8 ounces. What is the average weight of woman’s brain ?

   A. 4.8 ounce
   B. 5.8 ounce
   C. 5.4 ounce
   D. 4.4 ounce

   Submitted by: Mansoor Ahmed Suhag

7. _________ is the atmospheric layer that absorbs most of the ultraviolet radiation that Earth receives from the Sun.

   A. Troposphere
   B. Stratosphere 
   C. Mesosphere
   D. Ionosphere

   Submitted by: Muhammad Abdullah

8. It is observed that the total pressure exerted by air on the man of average size is around 14.7 lb wt. per square inch. But the man feels quite comfortable,. It is because of__________?

   A. An equal and opposite pressure acts from inside
   B. of the height of a man
   C. of gravity
   D. Earth pulls the man upward
   E. None of these

   Submitted by: Zeeshan Rafique Soomro

9. The average speed of a moving object during a given interval of time is always:

   A. the magnitude of its average velocity over the interval
   B. the distance covered during the time interval divided by the time interval
   C. one-half its speed at the end of the interval
   D. its acceleration multiplied by the time interval
   E. one-half its acceleration multiplied by the time interval

   Submitted by: Mansoor Ul Haque

10. What is the name of that system, which uses radioactivity to decide the period of materials of-pre-historic period ?

    A. Radium dating
    B. Uranium dating
    C. Carbon dating
    D. Deuterium dating

    Submitted by: Abid Hussain