In which layer of atmosphere does commercial aircrafts usually fly?

Related Mcqs:

1. Ozone layer prevents ______________ radiation from entering the atmosphere?

   A. Infra-red
   B. Ultraviolet
   C. X-rays
   D. Gamma rays
   E. None of these

2. Second layer of Earth’s atmosphere is__________?

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

   Submitted by: Rehana Mallah

3. what is the height of The atmosphere layer mesosphere?

   A. 85 km
   B. 50 km
   C. 40 km
   D. 10 km

   Submitted by: Rehana Mallah

4. Which layer of the atmosphere reflects radio waves back to the earth’s surface?

   A. Troposphere
   B. Stratosphere
   C. Ozone layer
   D. Ionosphere

   Submitted by: Aamir Hussain Laghari

5. Which layer of the atmosphere lies close to the earth?

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

   Submitted by: Ali Mallah

6. __________ is the lowest layer of the atmosphere.

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

   Submitted by: Muhammad Abdullah

7. Bats can also fly in dark because they are capable of taking the help of _________?

   A. Ultraviolet Waves
   B. Ultrasonic Waves
   C. Electromagnetic Waves
   D. Special Retina

8. A bird that can fly backwards?

   A. Bat
   B. Humming Bird
   C. Crimson Sun Bird
   D. Cardinal Bird

   Submitted by: Mansoor Ahmed Suhag

9. ___________ is a mammal who fly?

   A. Ostrich
   B. Bat
   C. Peacock
   D. None of these

   Submitted by: Mohsin Ali

10. The atmosphere near the earth’s surface is “heated from below.” Which of the following does not significantly contribute to this heating _____________________?

    A. Conduction of heat upward from a hot surface
    B. Convection from a hot surface
    C. Absorption of infrared energy that has been radiated from the surface
    D. Heat energy from the earth’s interior

    Submitted by: Mansoor Ul Haque