Choose the correct arrangement of the atmosphere's layers beginning from the Earth's surface:

Consider the following statements regarding the characteristics of the Troposphere: A. The thickness of this layer is dynamic, extending to about 18 km at the equator and 8 km at the poles. B. It contains approximately 75 percent of the atmosphere's total mass and almost all of its water vapor. C. The temperature in this layer decreases with altitude at an average lapse rate of about 6.5 °C per kilometer. D. Factors contributing to the variation in its thickness include centrifugal forces and strong convective currents at the equator. Choose the most appropriate answer from the options given below:

Arrange the following layers of the atmosphere in order of increasing atmospheric pressure of gas molecules present in them: A. Troposphere B. Stratosphere C. Mesosphere D. Thermosphere Choose the correct answer from the options given below: