Multiple choice Troposphere is the layer of the atmosphere which extends upto 16 km to 80 km 8 km to 16 km 80 km to 480 km 480 km and above Reveal answer Fill a bubble to check yourself B Correct answer Explanation Troposphere is the lowest layer of Earth's atmosphere. The troposphere starts at Earth's surface and goes up to a height of 8 km to 16 km above sea level.