Q. Consider the following statements:
1.A controlled re-entry is possible for satellites placed in geo-stationary or geosynchronous orbit.
2.Kessler syndrome is a scenario in which Earth’s orbit is overpopulated with objects and debris, preventing the use of satellites in certain sections of Earth’s orbit.
Select the correct option using the code given below:

[A] 1 only

[B] 2 only

[C] Both 1 and 2

[D] Neither 1 nor 2

Answer: B
Notes:

Explanation –

Statement 1 is incorrect. A controlled re-entry is possible only for satellites in low-earth orbit – at about 1,000 kms over the surface of the earth. It is impossible for satellites placed in geo-stationary or geosynchronous orbit.

Statement 2 is correct. Kessler syndrome is a scenario in which Earth’s orbit is overpopulated with objects and debris, preventing the use of satellites in certain sections of Earth’s orbit.

Source: ForumIAS