General Knowledge Questions and Answers on Environment

GK Questions on Environment:

Question:  Environment consists of which two elements?

Answer: Physical and Biological environment

 

Question: How many spheres does the Earth comprise of? 

Answer: Earth comprises of three spheres Lithosphere Hydrosphere And Atmosphere.

 

Question: What is the study of lithosphere known as?

 Answer:  Geomorphology

 

Question:  What is the study of Hydrosphere known as?

 Answer:  Oceanography

 

 Question:  What is the study of atmosphere known as?

 Answer:  Climatology

 

General Knowledge Questions on Atmosphere:

Question:  What are the five layers of atmosphere?

 Answer:  Troposphere, Stratosphere, Mesosphere, Thermosphere and Exosphere

 

Question: Which is the lowest layer of atmosphere?

 Answer:   Troposphere it is also known as Turbosphere or convectosphere

 

Question: What is the average height of troposphere?

 Answer:  14 km (8 km along the pole and 18 km along the equator)

 

 Question:  What is the upper limit of troposphere called as?

 Answer:  Tropopause 

 

Question: Which layer is above the troposphere?

 Answer:  Stratosphere

 

 Question:  What is the height of stratosphere?

 Answer:  50 km

 

 Question: In which layer are the harmful ultraviolet radiations from the sun absorbed?

 Answer:  The ozone in stratosphere absorbs harmful UV radiations

 

 Question:  Which is the layer above stratosphere?

 Answer:  Mesosphere

 

Question:  What is the height of mesosphere?

 Answer:  It extends up to 80 km.

 

 Question:  Which is the second last layer or fourth layer?

Answer:  Thermosphere 

 

Question:  What is the height of thermosphere?

 Answer:  Thermosphere extends up to 513 km.

 

 Question: What is the maximum temperature that can be reached in ionosphere?

Answer:  Up to approximately 2500 degree Celsius

 

 Question:  Which layer enables long distance Communications and wireless communication?

 Answer:   Ionosphere

 

 Question:  Which is the outermost layer of atmosphere?

 Answer:  Exosphere 

 

Question: What is the height of exosphere?

 Answer:  As per scientist estimation it extends up to height of 10,000 km

 

General Knowledge Questions on earth’s interior:

Question:  What is earth’s interior made up of?

 Answer:  It’s made up of three layers Crust, Mantle and Core

 

Question:  What is the percentage of crust?

Answer:  1%

 

Question:  What is the percentage of Mantle?

Answer: 84%

 

Question: What is the percentage of Core?

Answer: 15%

 

Question:  Which is the thinnest layer in earth’s interior?

Answer:  crust

 

Question:  What does the crust layer comprise of?

Answer: Crust comprises of rocks rich in silica and Aluminium (Si+Al)

 

Question: What is the depth of crust layer?

Answer:  Ranges between 30 km to 100 km deep

 

Question:  What is the second of the earth’s interior called as?

Answer:  Mantle

 

Question:  Which is the thickest layer in Earth’s crust?

Answer:  Mantle

 

Question:  What is the depth of mantle layer?

Answer:   It extends up to a depth of 2900 km

 

 Question:  What is the mental layer made of?

 Answer:  Material rich in Silica and Magnesium (Si+Ma)

 

Question: What is the radius of earth’s core?

Answer: 6400 km

 

Question:  What is Earth’s core made of?

Answer:  Nickel and Ferrum (Ni+Fe)

 

Question: Which layer helps in earth’s magnetism?

Answer:  Core 

 

Hope the gk questions and answers on environment have helped you.

Happy Learning!