The Aurora Borealis, also known as ________?

Related Mcqs:

1. The phenomenon of Aurora Borealis, the display of red and green lights in northern hemisphere is due to radiations from____________ ?

   A. Ionosphere
   B. Troposphere
   C. Mesosphere
   D. Stratosphere
   E. None of these

2. The thermosphere extends from an altitude of ________ to the base of ________ at ________?

   A. 75 km, Mesosphere, 670 km
   B. 80 km, Ionosphere, 680 km
   C. 85 km, Exosphere, 690 km
   D. 90 km, Ozone Layer , 690 km

   Submitted by: Muhammad Abdullah

3. Jupiter has ________ known moons.

   A. 62
   B. 73
   C. 79
   D.53

   Submitted by: Muhammad Awais Tariq

4. The study of organisms and their environment is known as ________?

   A. Acoustics
   B. Ecology
   C. Ichthyology
   D. None of these

   Submitted by: Kashif Ashraf

5. The study of fish is known as ________?

   A. Entomology
   B. Ichthyology
   C. Ecology
   D. None of these

   Submitted by: Kashif Ashraf

6. What is the number of known crystalline phases of water ________?

   A. 4
   B. 8
   C. 17
   D. 18

   Submitted by: Rashid Mehmood

7. Medium which sends signal from source to destination is known as ________ ?

   A. Transmitter
   B. Transmission channel
   C. Receiver
   D. Hardware

   Submitted by: Rashid Mehmood

8. For seeing objects at the surface of water from a submarine under water, the instrument used is ________?

   A. Periscope
   B. Telescope
   C. Kaleidoscope
   D. Spectroscope

   Submitted by: Rashid Mehmood

9. Dinosaurs and many other species were extinct about ________ years ago.

   A. 55 million
   B. 66 million
   C. 75 million
   D. 85 million

   Submitted by: Hafeez Alam Saila

10. What is the molecular formula for Nitric acid ________ ?

    A. HNO2
    B. HNO3
    C. HN2O2
    D. H2NO4

    Submitted by: Rashid Mehmood