// // // // // // //
meteorology //- /
/CORRECT /
/ANSWERS(S)✔✔the /
/study //of //short //term //trends //and //variations //in //the //earth's //atmosphere
atmosphere //- //CORRECT //ANSWERS(S)✔✔a //thin //layer //of //gas //held //to //a //planet //by //gravity
the /
/earth /
/atmosphere /
/is //made //up //of //how //much //nitrogen //- //CORRECT //ANSWERS(S)✔✔roughly //80 //percent
the /
/earth /
/atmosphere /
/is //made //up //of //how //much //oxygen //- //CORRECT //ANSWERS(S)✔✔roughly //20 //percent
other /
/planets /
/atmosphere /
/has //an //enormous //amount //of //what //gas? //- //CORRECT //ANSWERS(S)✔✔carbon //dioxide
what /
/was /
/the /
/earth's /
/primary /
/atmosphere(first /
/atmosphere) //made //up //of? //- //CORRECT //ANSWERS(S)✔✔hydrogen //and //helium
,what /
/was /
/the /
/earth's /
/secondary /
/atmosphere /
/(second //atmosphere) //made //up //of? //- //CORRECT //ANSWERS(S)✔✔nitrogen //and //water //vapor
//and //carbon //dioxide
the //more //massive //an //atom //or //molecule //is //it //moves.. //- //CORRECT //ANSWERS(S)✔✔slower
the //less //massive //an //atom //or //molecule //is //it //moves.. //- //CORRECT //ANSWERS(S)✔✔faster
nebula //- //CORRECT //ANSWERS(S)✔✔a //giant //cloud //of //gas //many //light //year //across
nebula //are //mostly //what //gas //- //CORRECT //ANSWERS(S)✔✔hydrogen //and //helium
why /
/was /
/the /
/earth's /
/primary /
/atmosphere /
/mostly //hydrogen //and //helium? //- //CORRECT //ANSWERS(S)✔✔because //the //whole //universe //is
//mostly //hydrogen //and //helium
what //is //the //lightest //atom //in //the //entire //universe? //- //CORRECT //ANSWERS(S)✔✔hydrogen
what /
/is //the //second //lightest //atom //in //the //entire //universe? //- //CORRECT //ANSWERS(S)✔✔helium
,what /
/gases /
/make /
/up /
/the /
/earth's //normal //atmosphere? //- //CORRECT //ANSWERS(S)✔✔nitrogen //and //carbon //dioxide
are /
/all /
/of /
/the /
/molecules /
/in //
a/
/room /
/moving /
/at /
/the /
/same /
/speed? //- /
/CORRECT /
/ANSWERS(S)✔✔no /
/but //they //have //the //same //amount //of //energy //so //they //are //the //same //temperature
the /
/earth /
/lost /
/its //primary //atmosphere //because //... //- //CORRECT //ANSWERS(S)✔✔the //hydrogen //and //helium
//atoms //are //so //light //they //moved //faster //and //escaped //the //earth's //gravity
outgassing //- //CORRECT //ANSWERS(S)✔✔when //gases //come //out //of //a //volcanic //eruption
, the /
/most /
/abundant //gas //outgassed //by //a //volcanic //eruptions //- //CORRECT //ANSWERS(S)✔✔water //vapor
what //formed //earth's //secondary //atmosphere? //- //CORRECT //ANSWERS(S)✔✔volcanic //activity
what /
/created /
/the /
/oceans? //- /
/CORRECT //ANSWERS(S)✔✔the //water //vapors //condensed //and //precipitated //back //onto //earth
what /
/removed /
/the /
/carbon /
/dioxide /
/from /
/the /
/earth's /
/normal /
/atmosphere /
/and /
/replaced //it //with //oxygen //? //- //CORRECT //ANSWERS(S)✔✔primitive //lifeforms //in //the //ocean
what //allows //us //to //live //on //earth? //- //CORRECT //ANSWERS(S)✔✔the //atmosphere
the /
/pressure /
/in /
/the /
/earth's //atmosphere //decreases //as //you...? //- //CORRECT //ANSWERS(S)✔✔go //up //in //altitude