Day and night are the results of__________?

Related Mcqs:

1. At night, Plants intake __________ and release __________?

   A. Oxygen – Carbon dioxide
   B. Carbon dioxide – Oxygen
   C. Oxygen – Carbon monoxide
   D. None of theseCarbon monoxide – Oxygen

2. In night, when photosynthesis is stopped, plants__________?

   A. take in Carbon Dioxide
   B. give off Oxygen
   C. give off Carbon Dioxide
   D. None of these

3. Night vision is possible with the help of ___________?

   A. Red light
   B. Violet light
   C. Infrared Rays
   D. Ultra violet Light
   E. None of these

4. Which one is the brightest star in the night sky?

   A. Betelgeuse
   B. Sirius
   C. Rigel
   D. Polaris

   Submitted by: Mansoor Ul Haque

5. Permissible noise level at Residential area during night time is:

   A. 45 dB 
   B. 55 dB
   C. 75 dB
   D. 80 dB

   Submitted by: Malik Asghar Hussain

6. What is the date when day and night are equal?

   A. March 21 and December 24
   B. January 14 and September 23
   C. March 20 and September 23
   D. January 14 and June 22

   Submitted by: Mansoor Ahmed Suhag

7. Which types of waves are used in a night vision apparatus ?

   A. Radio Waves
   B. Micro Waves
   C. Infrared Waves
   D. Magnetic waves

   Submitted by: Haziq

8. The difference in the duration of day and night increases as one moves from:_________?

   A. West to East
   B. East and west of the prime meridian
   C. Equator to poles
   D. None of these

   Submitted by: SHAFQAT ALI SIYAL

9. Which planet looks reddish in the night sky ?

   A. Jupiter
   B. Saturn
   C. Mars
   D. MercurY

   Submitted by: Muhammad Umar Abbas

10. The earth revolves around the sun at a speed of__________?

    A. 18.5 km/sec
    B. 26.6 km/sec
    C. 29 km/sec
    D. 31.9 km/sec

    Submitted by: Syed Nizakat Ali Shah