HomeUPSCThe zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as : 216. The zone of Earth’s atmosphere immediately above its surface up to a height of about 16 kms above equator and 8 kms over the poles is known as :By Admin / October 4, 2025 A. Mesosphere B. Thermosphere C. Troposphere D. Stratosphere ✅ The correct answer is option C.