Why would an organism use chemosynthesis to
create energy instead of photosynthesis?

Imagine a rocket launching from earth and travelling to the moon. in which order would the rocket pass through the layers of the atmosphere? thermosphere, mesosphere, stratosphere, troposphere troposphere, mesosphere, stratosphere, troposphere thermosphere, stratosphere, mesosphere, troposphere troposphere, stratosphere, mesosphere, thermosphere

Several billion years ago which gas was the least prevailant in the atmosphere

Describe the layers of the suns atmosphere?