Mashed up - Ends 19th April

Without order, there can only be chaos! I woke up to find my sister shredding my work through the shredder. She really is evil... I've tried to put it back together but this is all I have at the moment. Simply work through the following sentences and put them into the correct order. When you have the sentences in the correct order, PM HabboxComps with your answers. Good luck!

Prize: 1 HC Sofa + 20 rep

1. atmosphere of nitrogen The gases and oxygen 78% 21% percentage a other Earth's small contains
2. square value Pi of root 12 is and of 144 The 3.14 the is
3. Christanity Easter Jesus Sunday on again In rose