What is the name given to Earth's first atmosphere?

Answer 1

There are five different layers in the earth atmosphere. First layer - Named the Troposphere, it is the lowest layer of the atmosphere and begins at the surface and extends to between 7 km (23,000 ft) at the poles and 17 km (56,000 ft) at the equator. Second layer - Named the Stratosphere, extends from the troposphere's 7-17 km (4.3-11 mi; 23,000-56,000 ft) range to about 51 km (32 mi; 170,000 ft). Though part of the Stratosphere, the ozone layer is considered as a layer of the Earth's atmosphere in itself because its physical and chemical composition is far different from the Stratosphere. Temperature increases with height. Third layer - Named the Mesosphere, extends from about 50 km (31 mi; 160,000 ft) to the range of 80-85 km (50-53 mi; 260,000-280,000 ft). Temperature also decreases with height, reaching −100 °C (−148.0 °F; 173.1 K) in the upper mesosphere Fourth layer - Named the Thermosphere, ranged from 80-85 km (50-53 mi; 260,000-280,000 ft) to over 640 km (400 mi; 2,100,000 ft). Temperature increasing with height. And although the temperature can rise to 1,500 °C (2,730 °F), one would not feel warm because of the extremely low pressure Fifth layer - Named the Exosphere, the furthest most layer ranging from 500-1,000 km (310-620 mi; 1,600,000-3,300,000 ft) up to 10,000 km (6,200 mi; 33,000,000 ft), and contains free-moving particles

Answer 2

Earth's atmosphere is divided for convenience into 5 layers, the Troposhere, the Stratosphere, the Mesosphere, the Thermoshpere, and the Exosphere. It is made up of 78% Nitrogen, 21% Oxygen, with a dash of argon, water vapor and carbon dioxide and lesser amounts of other gases.

Answer 3

The atmosphere refers to the gas around our planet, mainly nitrogen and oxygen. This gets thinner as you get further away from the surface - there are fewer and fewer gas molecules about. You never really get to zero molecules in space, theres always the occasional gas particle about, but at 100km away from the earth (100km in height), you will be considered to be officially in space.

Answer 4

1. Troposphere (8-18km above Earth's surface) 2.Stratosphere (50km above Earth's Surface) 3. Mesosphere (50-85km) 4.Thermosphere (85-450km) 5.Exosphere (450-10,000km)

Answer 5

The exosphere is the extremely thin layer of the Earthâ??s atmosphere where our atmosphere merges with space. It is the upper limit of our atmosphere.

Answer 6

The troposphere.