TASK DEFINITION: In this task, we ask you to rewrite a sentence in simple English without changing its general meaning. Essentially, you want to make the sentence easier to read by using simpler words, utilizing more straightforward sentence structures, and omitting non-essential information etc.
PROBLEM: Inert atmospheres consisting of gases such as argon , nitrogen , or helium are commonly used in chemical reaction chambers and in storage containers for oxygen-sensitive or water-sensitive substances , to prevent unwanted reactions of these substances with oxygen or water .

SOLUTION: Inert atmospheres of gases such as dinitrogen and argon are routinely used in chemical reactions where air sensitive and water sensitive compounds are handled .

PROBLEM: The Solar wind affects many other systems in the Solar System ; for example , variations in the Sun 's own magnetic field are carried outward by the solar wind , producing geomagnetic storms in the Earth 's magnetosphere .

SOLUTION: Differences in the Sun 's magnetic field are carried outward by the solar wind and can produce magnetic storms in the Earth 's magnetosphere .

PROBLEM: The Swedish Pentecostal Movement is a Protestant community consisting of 463 congregations ( as of 31 December 2011 ) which together make up the Swedish pentecostalism movement .

SOLUTION:
On 31 December 2011 it consisted of 463 congregations .