What causes the temperature change in the stratosphere?

HEY !! HERE IS YOUR ANSWER :

Explanation:In the stratosphere temperature increses with altitude . the reason is that the direct heat source for the stratosphere is the sun . A layer  of ozone moluecules absorbs  solar radiation , which heats the stratosphere .

compost can be added to topsoil as a:

pesticide

the correct answer is: b. pantala flavescens, because these organisms would have a high level of genetic variation due to sexual reproduction.  

because involves two organisms (parents) whose genetic material combines, sexual reproduction leads to genetic variation in new generations of offspring. the offspring is an unique organism, with new genome, more protected with the higher ability to adapted. this process is fundamental to evolution.