Question : Which of the following statements about the ionosphere is not correct?

Option 1: It contains charged particles.

Option 2: It is ionised by solar and cosmic radiation.

Option 3: Radio waves transmitted from the earth are reflected back to the earth by this layer.

Option 4: It is located immediately above the stratopause.

Question : Identify the incorrect statement for the universal law of gravitation.

Option 1: It is the force that binds us to the earth

Option 2: It is the force causing tides due to the stars and the earth

Option 3: It is the forces that assist the motion of the moon around the earth

Option 4: It is the force that keeps the motion of planets around the Sun

Question : Which of the following Statements is false?

Option 1: Polystyrene was discovered in 1839 by Edward Simon.

Option 2: It is used for making plastics and CD cases.

Option 3: It is not biodegradable.

Option 4: None of these

Question : When power is shared among different organs of government, it is known as ________. 

Option 1: community government 

Option 2: separation of powers

Option 3: coalition government 

Option 4: amalgamation of powers

Question : If in the east it is Guhar Moti, in the north it is Siachen Glacier, in the south, it is:

Option 1: Kuttanad

Option 2: Kanyakumari

Option 3: Rameshwaram

Option 4: Indira Point