Ancient cyanobacteria released which assisted in creating the atmosphere as we know it today.
a. lead
b. ore
c. hydrogen
d. oxygen

The ancient cyanobacteria releases oxygen which assisted in creating the atmosphere as we know it today.  This bacteria can perform photosynthesis and are similar to the plants or trees. Their photosynthesis produces oxygen changed the atmosphere made it oxidizing. Cyanobacteria is also called as Cynophytha. 

Ok, before buying a burger. think of you diet and calories. how many calories are you suppose to eat a day. and look at how much fat, calories, salt is in it. if it is ok to you, then buy it. but if you think that it's to much fat and salt for you. don't buy !

Adescription of  congestive heart  failure, its symptoms, risk factors, and treatment. to the  heart muscle  other than by artery or blood  flow  problems; signs of  heart  failure may not  meanthe patient has  heart  failure and they quit alcohol, or at least consume alcohol within the national recommended  limits.